13122523552 has 24 divisors (see below), whose sum is σ = 26322423876. Its totient is φ = 6437463552.

The previous prime is 13122523537. The next prime is 13122523553. The reversal of 13122523552 is 25532522131.

It can be written as a sum of positive squares in 2 ways, for example, as 12887698576 + 234824976 = 113524^2 + 15324^2 .

It is not an unprimeable number, because it can be changed into a prime (13122523553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3866973 + ... + 3870364.

Almost surely, 2^13122523552 is an apocalyptic number.

It is an amenable number.

13122523552 is an abundant number, since it is smaller than the sum of its proper divisors (13199900324).

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

13122523552 is an equidigital number, since it uses as much as digits as its factorization.

13122523552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7737400 (or 7737392 counting only the distinct ones).

The product of its digits is 18000, while the sum is 31.

The spelling of 13122523552 in words is "thirteen billion, one hundred twenty-two million, five hundred twenty-three thousand, five hundred fifty-two".