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13231112032020 = 22356711632830027
BaseRepresentation
bin1100000010001001101110…
…1110111000111100010100
31201211212210221120012022010
43000202123232320330110
53213234304140011040
644050142225304220
72533626201432201
oct300423356707424
951755727505263
1013231112032020
114241312898053
121598340795070
1374c8c4873a9c
1433a564102ca8
1517e289195e80
hexc089bbb8f14

13231112032020 has 96 divisors (see below), whose sum is σ = 37632399211008. Its totient is φ = 3472645663872.

The previous prime is 13231112032013. The next prime is 13231112032037. The reversal of 13231112032020 is 2023021113231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3260247 + ... + 6090273.

It is an arithmetic number, because the mean of its divisors is an integer number (392004158448).

Almost surely, 213231112032020 is an apocalyptic number.

13231112032020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13231112032020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18816199605504).

13231112032020 is an abundant number, since it is smaller than the sum of its proper divisors (24401287178988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13231112032020 is a wasteful number, since it uses less digits than its factorization.

13231112032020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2831269 (or 2831267 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 13231112032020 its reverse (2023021113231), we get a palindrome (15254133145251).

The spelling of 13231112032020 in words is "thirteen trillion, two hundred thirty-one billion, one hundred twelve million, thirty-two thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 67 134 201 268 335 402 670 804 1005 1163 1340 2010 2326 3489 4020 4652 5815 6978 11630 13956 17445 23260 34890 69780 77921 155842 233763 311684 389605 467526 779210 935052 1168815 1558420 2337630 2830027 4675260 5660054 8490081 11320108 14150135 16980162 28300270 33960324 42450405 56600540 84900810 169801620 189611809 379223618 568835427 758447236 948059045 1137670854 1896118090 2275341708 2844177135 3291321401 3792236180 5688354270 6582642802 9873964203 11376708540 13165285604 16456607005 19747928406 32913214010 39495856812 49369821015 65826428020 98739642030 197479284060 220518533867 441037067734 661555601601 882074135468 1102592669335 1323111203202 2205185338670 2646222406404 3307778008005 4410370677340 6615556016010 13231112032020