13111231011312 has 60 divisors (see below), whose sum is σ = 39400587076776. Its totient is φ = 3746066002560.

The previous prime is 13111231011269. The next prime is 13111231011367. The reversal of 13111231011312 is 21311013211131.

13111231011312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×13111231011312² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2787249139 + ... + 2787253842.

Almost surely, 2^{13111231011312} is an apocalyptic number.

13111231011312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13111231011312 is an abundant number, since it is smaller than the sum of its proper divisors (26289356065464).

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

13111231011312 is a wasteful number, since it uses less digits than its factorization.

13111231011312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5574503006 (or 5574502993 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 21.

Adding to 13111231011312 its reverse (21311013211131), we get a palindrome (34422244222443).

The spelling of 13111231011312 in words is "thirteen trillion, one hundred eleven billion, two hundred thirty-one million, eleven thousand, three hundred twelve".