213021131130 has 48 divisors (see below), whose sum is σ = 577935596160. Its totient is φ = 54335824224.

The previous prime is 213021131123. The next prime is 213021131143. The reversal of 213021131130 is 31131120312.

213021131130 is a `hidden beast` number, since 21 + 302 + 1 + 1 + 311 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51452310 + ... + 51456449.

It is an arithmetic number, because the mean of its divisors is an integer number (12040324920).

Almost surely, 2^213021131130 is an apocalyptic number.

213021131130 is an abundant number, since it is smaller than the sum of its proper divisors (364914465030).

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

213021131130 is a wasteful number, since it uses less digits than its factorization.

213021131130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102908795 (or 102908792 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 213021131130 its reverse (31131120312), we get a palindrome (244152251442).

The spelling of 213021131130 in words is "two hundred thirteen billion, twenty-one million, one hundred thirty-one thousand, one hundred thirty".