210021323130 has 48 divisors (see below), whose sum is σ = 557673652224. Its totient is φ = 54814074720.

The previous prime is 210021323123. The next prime is 210021323147. The reversal of 210021323130 is 31323120012.

210021323130 is a `hidden beast` number, since 210 + 0 + 2 + 1 + 323 + 130 = 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, 24820986 + ... + 24829445.

It is an arithmetic number, because the mean of its divisors is an integer number (11618201088).

Almost surely, 2^210021323130 is an apocalyptic number.

210021323130 is an abundant number, since it is smaller than the sum of its proper divisors (347652329094).

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

210021323130 is a wasteful number, since it uses less digits than its factorization.

210021323130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49650491 (or 49650488 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 210021323130 its reverse (31323120012), we get a palindrome (241344443142).

The spelling of 210021323130 in words is "two hundred ten billion, twenty-one million, three hundred twenty-three thousand, one hundred thirty".