212031233130 has 64 divisors (see below), whose sum is σ = 520866846720. Its totient is φ = 55210026816.

The previous prime is 212031233123. The next prime is 212031233149. The reversal of 212031233130 is 31332130212.

It is a junction number, because it is equal to n+sod(n) for n = 212031233097 and 212031233106.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4568019 + ... + 4614201.

It is an arithmetic number, because the mean of its divisors is an integer number (8138544480).

Almost surely, 2^212031233130 is an apocalyptic number.

212031233130 is an abundant number, since it is smaller than the sum of its proper divisors (308835613590).

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

212031233130 is a wasteful number, since it uses less digits than its factorization.

212031233130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49795.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 212031233130 its reverse (31332130212), we get a palindrome (243363363342).

The spelling of 212031233130 in words is "two hundred twelve billion, thirty-one million, two hundred thirty-three thousand, one hundred thirty".