131215215605104 has 20 divisors (see below), whose sum is σ = 267609979195240. Its totient is φ = 62154575812800.

The previous prime is 131215215605099. The next prime is 131215215605261. The reversal of 131215215605104 is 401506512512131.

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, 215814499047 + ... + 215814499654.

It is an arithmetic number, because the mean of its divisors is an integer number (13380498959762).

Almost surely, 2^{131215215605104} is an apocalyptic number.

It is an amenable number.

131215215605104 is an abundant number, since it is smaller than the sum of its proper divisors (136394763590136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131215215605104 is a wasteful number, since it uses less digits than its factorization.

131215215605104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431628998728 (or 431628998722 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 37.

The spelling of 131215215605104 in words is "one hundred thirty-one trillion, two hundred fifteen billion, two hundred fifteen million, six hundred five thousand, one hundred four".