13131945075 has 24 divisors (see below), whose sum is σ = 21867697600. Its totient is φ = 6953312160.

The previous prime is 13131945067. The next prime is 13131945091. The reversal of 13131945075 is 57054913131.

It is not a de Polignac number, because 13131945075 - 2³ = 13131945067 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 619405 + ... + 640254.

Almost surely, 2^13131945075 is an apocalyptic number.

13131945075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13131945075 is a deficient number, since it is larger than the sum of its proper divisors (8735752525).

13131945075 is a wasteful number, since it uses less digits than its factorization.

13131945075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1259811 (or 1259806 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 39.

The spelling of 13131945075 in words is "thirteen billion, one hundred thirty-one million, nine hundred forty-five thousand, seventy-five".