31201131196 has 24 divisors (see below), whose sum is σ = 54912485600. Its totient is φ = 15511953600.

The previous prime is 31201131179. The next prime is 31201131197. The reversal of 31201131196 is 69113110213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31201131197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1278226 + ... + 1302406.

Almost surely, 2^31201131196 is an apocalyptic number.

It is an amenable number.

31201131196 is a deficient number, since it is larger than the sum of its proper divisors (23711354404).

31201131196 is a wasteful number, since it uses less digits than its factorization.

31201131196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26005 (or 26003 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 28.

The spelling of 31201131196 in words is "thirty-one billion, two hundred one million, one hundred thirty-one thousand, one hundred ninety-six".