131204320504 has 16 divisors (see below), whose sum is σ = 246287351520. Its totient is φ = 65527693440.

The previous prime is 131204320447. The next prime is 131204320523. The reversal of 131204320504 is 405023402131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9300864 + ... + 9314959.

It is an arithmetic number, because the mean of its divisors is an integer number (15392959470).

Almost surely, 2^131204320504 is an apocalyptic number.

It is an amenable number.

131204320504 is a deficient number, since it is larger than the sum of its proper divisors (115083031016).

131204320504 is a wasteful number, since it uses less digits than its factorization.

131204320504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18616710 (or 18616706 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 131204320504 its reverse (405023402131), we get a palindrome (536227722635).

The spelling of 131204320504 in words is "one hundred thirty-one billion, two hundred four million, three hundred twenty thousand, five hundred four".