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20013212301223 = 479185753224929
BaseRepresentation
bin1001000110011101100000…
…11010001111011110100111
32121212020121011201221122111
410203032300122033132213
510110344024322114343
6110321535351341451
74133623025516341
oct443166032173647
977766534657574
1020013212301223
116416612667549
1222b2840381887
13b22312658b5b
144d2904c8c291
1524a8c9c71c9d
hex1233b068f7a7

20013212301223 has 8 divisors (see below), whose sum is σ = 20055190665600. Its totient is φ = 19971234759168.

The previous prime is 20013212301217. The next prime is 20013212301281. The reversal of 20013212301223 is 32210321231002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20013212301223 - 217 = 20013212170151 is a prime.

It is a super-2 number, since 2×200132123012232 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20013212301194 and 20013212301203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20013212301623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88863223 + ... + 89088151.

It is an arithmetic number, because the mean of its divisors is an integer number (2506898833200).

Almost surely, 220013212301223 is an apocalyptic number.

20013212301223 is a deficient number, since it is larger than the sum of its proper divisors (41978364377).

20013212301223 is a wasteful number, since it uses less digits than its factorization.

20013212301223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411161.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 20013212301223 its reverse (32210321231002), we get a palindrome (52223533532225).

The spelling of 20013212301223 in words is "twenty trillion, thirteen billion, two hundred twelve million, three hundred one thousand, two hundred twenty-three".

Divisors: 1 479 185753 224929 88975687 107740991 41781236537 20013212301223