13112352520425 has 18 divisors (see below), whose sum is σ = 23485680292542. Its totient is φ = 6993254677440.

The previous prime is 13112352520417. The next prime is 13112352520439. The reversal of 13112352520425 is 52402525321131.

13112352520425 is a `hidden beast` number, since 1 + 3 + 1 + 123 + 5 + 2 + 520 + 4 + 2 + 5 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 2617707192489 + 10494645327936 = 1617933^2 + 3239544^2 .

It is not a de Polignac number, because 13112352520425 - 2³ = 13112352520417 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13112352520425.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 29138560932 + ... + 29138561381.

Almost surely, 2^{13112352520425} is an apocalyptic number.

13112352520425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13112352520425 is a deficient number, since it is larger than the sum of its proper divisors (10373327772117).

13112352520425 is a wasteful number, since it uses less digits than its factorization.

13112352520425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58277122329 (or 58277122321 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

Adding to 13112352520425 its reverse (52402525321131), we get a palindrome (65514877841556).

The spelling of 13112352520425 in words is "thirteen trillion, one hundred twelve billion, three hundred fifty-two million, five hundred twenty thousand, four hundred twenty-five".