13131520422412 has 24 divisors (see below), whose sum is σ = 26263445348000. Its totient is φ = 5627707787520.

The previous prime is 13131520422407. The next prime is 13131520422487. The reversal of 13131520422412 is 21422402513131.

13131520422412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1744287 + ... + 5413462.

Almost surely, 2^{13131520422412} is an apocalyptic number.

It is an amenable number.

13131520422412 is an abundant number, since it is smaller than the sum of its proper divisors (13131924925588).

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

13131520422412 is a wasteful number, since it uses less digits than its factorization.

13131520422412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7223281 (or 7223279 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 13131520422412 its reverse (21422402513131), we get a palindrome (34553922935543).

The spelling of 13131520422412 in words is "thirteen trillion, one hundred thirty-one billion, five hundred twenty million, four hundred twenty-two thousand, four hundred twelve".