13111231113200 has 120 divisors (see below), whose sum is σ = 34798324788480. Its totient is φ = 4707369388800.

The previous prime is 13111231113179. The next prime is 13111231113229. The reversal of 13111231113200 is 231113211131.

It is a super-2 number, since 2×13111231113200² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18512054 + ... + 19207253.

It is an arithmetic number, because the mean of its divisors is an integer number (289986039904).

Almost surely, 2^{13111231113200} is an apocalyptic number.

13111231113200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13111231113200 is an abundant number, since it is smaller than the sum of its proper divisors (21687093675280).

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

13111231113200 is a wasteful number, since it uses less digits than its factorization.

13111231113200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37719415 (or 37719404 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 13111231113200 its reverse (231113211131), we get a palindrome (13342344324331).

The spelling of 13111231113200 in words is "thirteen trillion, one hundred eleven billion, two hundred thirty-one million, one hundred thirteen thousand, two hundred".