210031312004 has 6 divisors (see below), whose sum is σ = 367554796014. Its totient is φ = 105015656000.

The previous prime is 210031311983. The next prime is 210031312021. The reversal of 210031312004 is 400213130012.

It can be written as a sum of positive squares in only one way, i.e., 115844929600 + 94186382404 = 340360^2 + 306898^2 .

It is a super-2 number, since 2×210031312004² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26253913997 + ... + 26253914004.

It is an arithmetic number, because the mean of its divisors is an integer number (61259132669).

Almost surely, 2^210031312004 is an apocalyptic number.

It is an amenable number.

210031312004 is a deficient number, since it is larger than the sum of its proper divisors (157523484010).

210031312004 is a wasteful number, since it uses less digits than its factorization.

210031312004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52507828005 (or 52507828003 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 210031312004 its reverse (400213130012), we get a palindrome (610244442016).

The spelling of 210031312004 in words is "two hundred ten billion, thirty-one million, three hundred twelve thousand, four".