131000004320344 has 32 divisors (see below), whose sum is σ = 249869556936720. Its totient is φ = 64374463535616.

The previous prime is 131000004320281. The next prime is 131000004320363. The reversal of 131000004320344 is 443023400000131.

It is a super-2 number, since 2×131000004320344² (a number of 29 digits) contains 22 as substring.

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, 396151117 + ... + 396481660.

Almost surely, 2^{131000004320344} is an apocalyptic number.

It is an amenable number.

131000004320344 is a deficient number, since it is larger than the sum of its proper divisors (118869552616376).

131000004320344 is a wasteful number, since it uses less digits than its factorization.

131000004320344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792633139 (or 792633135 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 131000004320344 its reverse (443023400000131), we get a palindrome (574023404320475).

The spelling of 131000004320344 in words is "one hundred thirty-one trillion, four million, three hundred twenty thousand, three hundred forty-four".