13112311011031 has 16 divisors (see below), whose sum is σ = 13535321892480. Its totient is φ = 12696042031200.

The previous prime is 13112311011011. The next prime is 13112311011049. The reversal of 13112311011031 is 13011011321131.

It is a cyclic number.

It is not a de Polignac number, because 13112311011031 - 2²³ = 13112302622423 is a prime.

It is a super-2 number, since 2×13112311011031² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13112311011011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31022740 + ... + 31442566.

It is an arithmetic number, because the mean of its divisors is an integer number (845957618280).

Almost surely, 2^{13112311011031} is an apocalyptic number.

13112311011031 is a deficient number, since it is larger than the sum of its proper divisors (423010881449).

13112311011031 is an equidigital number, since it uses as much as digits as its factorization.

13112311011031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427854.

The product of its (nonzero) digits is 54, while the sum is 19.

Adding to 13112311011031 its reverse (13011011321131), we get a palindrome (26123322332162).

The spelling of 13112311011031 in words is "thirteen trillion, one hundred twelve billion, three hundred eleven million, eleven thousand, thirty-one".