213431535556215 has 64 divisors (see below), whose sum is σ = 375096681446400. Its totient is φ = 103149283590144.

The previous prime is 213431535556207. The next prime is 213431535556237. The reversal of 213431535556215 is 512655535134312.

It is not a de Polignac number, because 213431535556215 - 2³ = 213431535556207 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1046187441 + ... + 1046391429.

It is an arithmetic number, because the mean of its divisors is an integer number (5860885647600).

Almost surely, 2^{213431535556215} is an apocalyptic number.

213431535556215 is a deficient number, since it is larger than the sum of its proper divisors (161665145890185).

213431535556215 is a wasteful number, since it uses less digits than its factorization.

213431535556215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363656.

The product of its digits is 8100000, while the sum is 51.

The spelling of 213431535556215 in words is "two hundred thirteen trillion, four hundred thirty-one billion, five hundred thirty-five million, five hundred fifty-six thousand, two hundred fifteen".