131235565144 has 32 divisors (see below), whose sum is σ = 246512257200. Its totient is φ = 65499079680.

The previous prime is 131235565129. The next prime is 131235565217. The reversal of 131235565144 is 441565532131.

It is a junction number, because it is equal to n+sod(n) for n = 131235565097 and 131235565106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10714864 + ... + 10727104.

Almost surely, 2^131235565144 is an apocalyptic number.

It is an amenable number.

131235565144 is a deficient number, since it is larger than the sum of its proper divisors (115276692056).

131235565144 is a wasteful number, since it uses less digits than its factorization.

131235565144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14563 (or 14559 counting only the distinct ones).

The product of its digits is 216000, while the sum is 40.

The spelling of 131235565144 in words is "one hundred thirty-one billion, two hundred thirty-five million, five hundred sixty-five thousand, one hundred forty-four".