13112313121232 has 80 divisors (see below), whose sum is σ = 28171866083088. Its totient is φ = 5873638440960.

The previous prime is 13112313121223. The next prime is 13112313121253. The reversal of 13112313121232 is 23212131321131.

It can be written as a sum of positive squares in 8 ways, for example, as 2419779358096 + 10692533763136 = 1555564^2 + 3269944^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2337413 + ... + 5629220.

Almost surely, 2^{13112313121232} is an apocalyptic number.

It is an amenable number.

13112313121232 is an abundant number, since it is smaller than the sum of its proper divisors (15059552961856).

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

13112313121232 is a wasteful number, since it uses less digits than its factorization.

13112313121232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7966888 (or 7966882 counting only the distinct ones).

The product of its digits is 1296, while the sum is 26.

Adding to 13112313121232 its reverse (23212131321131), we get a palindrome (36324444442363).

The spelling of 13112313121232 in words is "thirteen trillion, one hundred twelve billion, three hundred thirteen million, one hundred twenty-one thousand, two hundred thirty-two".