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13111031010 = 2357116784713
BaseRepresentation
bin11000011010111101…
…00111010011100010
31020211201201101101010
430031132213103202
5203322410443020
610004554521350
7642621632130
oct141536472342
936751641333
1013111031010
115618920720
12265aa36256
13130c3a841c
148c53cc750
1551b084de0
hex30d7a74e2

13111031010 has 128 divisors (see below), whose sum is σ = 39816935424. Its totient is φ = 2683676160.

The previous prime is 13111031009. The next prime is 13111031033. The reversal of 13111031010 is 1013011131.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 112414 + ... + 197126.

It is an arithmetic number, because the mean of its divisors is an integer number (311069808).

Almost surely, 213111031010 is an apocalyptic number.

13111031010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13111031010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19908467712).

13111031010 is an abundant number, since it is smaller than the sum of its proper divisors (26705904414).

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

13111031010 is a wasteful number, since it uses less digits than its factorization.

13111031010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84808.

The product of its (nonzero) digits is 9, while the sum is 12.

Adding to 13111031010 its reverse (1013011131), we get a palindrome (14124042141).

The spelling of 13111031010 in words is "thirteen billion, one hundred eleven million, thirty-one thousand, ten".

Divisors: 1 2 3 5 6 7 10 11 14 15 21 22 30 33 35 42 55 66 67 70 77 105 110 134 154 165 201 210 231 330 335 385 402 462 469 670 737 770 938 1005 1155 1407 1474 2010 2211 2310 2345 2814 3685 4422 4690 5159 7035 7370 10318 11055 14070 15477 22110 25795 30954 51590 77385 84713 154770 169426 254139 423565 508278 592991 847130 931843 1185982 1270695 1778973 1863686 2541390 2795529 2964955 3557946 4659215 5591058 5675771 5929910 6522901 8894865 9318430 11351542 13045802 13977645 17027313 17789730 19568703 27955290 28378855 32614505 34054626 39137406 39730397 56757710 62433481 65229010 79460794 85136565 97843515 119191191 124866962 170273130 187300443 195687030 198651985 238382382 312167405 374600886 397303970 437034367 595955955 624334810 874068734 936502215 1191911910 1311103101 1873004430 2185171835 2622206202 4370343670 6555515505 13111031010