210031203122 has 8 divisors (see below), whose sum is σ = 339281174316. Its totient is φ = 96937478352.

The previous prime is 210031203071. The next prime is 210031203191. The reversal of 210031203122 is 221302130012.

It can be written as a sum of positive squares in 2 ways, for example, as 210021474961 + 9728161 = 458281^2 + 3119^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×210031203122² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 210031203122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4039061573 + ... + 4039061624.

Almost surely, 2^210031203122 is an apocalyptic number.

210031203122 is a deficient number, since it is larger than the sum of its proper divisors (129249971194).

210031203122 is a wasteful number, since it uses less digits than its factorization.

210031203122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8078123212.

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

Adding to 210031203122 its reverse (221302130012), we get a palindrome (431333333134).

The spelling of 210031203122 in words is "two hundred ten billion, thirty-one million, two hundred three thousand, one hundred twenty-two".