210131023220 has 48 divisors (see below), whose sum is σ = 444924688320. Its totient is φ = 83358553344.

The previous prime is 210131023213. The next prime is 210131023307. The reversal of 210131023220 is 22320131012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2592752 + ... + 2672568.

It is an arithmetic number, because the mean of its divisors is an integer number (9269264340).

Almost surely, 2^210131023220 is an apocalyptic number.

210131023220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210131023220 is an abundant number, since it is smaller than the sum of its proper divisors (234793665100).

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

210131023220 is a wasteful number, since it uses less digits than its factorization.

210131023220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80912 (or 80910 counting only the distinct ones).

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

Adding to 210131023220 its reverse (22320131012), we get a palindrome (232451154232).

The spelling of 210131023220 in words is "two hundred ten billion, one hundred thirty-one million, twenty-three thousand, two hundred twenty".