13120613425 has 6 divisors (see below), whose sum is σ = 16269560678. Its totient is φ = 10496490720.

The previous prime is 13120613423. The next prime is 13120613431. The reversal of 13120613425 is 52431602131.

It can be written as a sum of positive squares in 3 ways, for example, as 44462224 + 13076151201 = 6668^2 + 114351^2 .

It is not a de Polignac number, because 13120613425 - 2¹ = 13120613423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13120613393 and 13120613402.

It is not an unprimeable number, because it can be changed into a prime (13120613423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 262412244 + ... + 262412293.

Almost surely, 2^13120613425 is an apocalyptic number.

It is an amenable number.

13120613425 is a deficient number, since it is larger than the sum of its proper divisors (3148947253).

13120613425 is an equidigital number, since it uses as much as digits as its factorization.

13120613425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524824547 (or 524824542 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The spelling of 13120613425 in words is "thirteen billion, one hundred twenty million, six hundred thirteen thousand, four hundred twenty-five".