213031132112112 has 40 divisors (see below), whose sum is σ = 550331245236480. Its totient is φ = 71010271485120.

The previous prime is 213031132112101. The next prime is 213031132112173. The reversal of 213031132112112 is 211211231130312.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 33419689 + ... + 39280247.

It is an arithmetic number, because the mean of its divisors is an integer number (13758281130912).

Almost surely, 2^{213031132112112} is an apocalyptic number.

It is an amenable number.

213031132112112 is an abundant number, since it is smaller than the sum of its proper divisors (337300113124368).

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

213031132112112 is a wasteful number, since it uses less digits than its factorization.

213031132112112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6617861 (or 6617855 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

Adding to 213031132112112 its reverse (211211231130312), we get a palindrome (424242363242424).

The spelling of 213031132112112 in words is "two hundred thirteen trillion, thirty-one billion, one hundred thirty-two million, one hundred twelve thousand, one hundred twelve".