213431535556156 has 12 divisors (see below), whose sum is σ = 373505290949560. Its totient is φ = 106715738142000.

The previous prime is 213431535556153. The next prime is 213431535556207. The reversal of 213431535556156 is 651655535134312.

213431535556156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 213431535556097 and 213431535556106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213431535556153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20355031 + ... + 29003281.

Almost surely, 2^{213431535556156} is an apocalyptic number.

It is an amenable number.

213431535556156 is a deficient number, since it is larger than the sum of its proper divisors (160073755393404).

213431535556156 is a wasteful number, since it uses less digits than its factorization.

213431535556156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14818044 (or 14818042 counting only the distinct ones).

The product of its digits is 24300000, while the sum is 55.

The spelling of 213431535556156 in words is "two hundred thirteen trillion, four hundred thirty-one billion, five hundred thirty-five million, five hundred fifty-six thousand, one hundred fifty-six".