20312203210 has 32 divisors (see below), whose sum is σ = 41086362240. Its totient is φ = 7173807168.

The previous prime is 20312203193. The next prime is 20312203237. The reversal of 20312203210 is 1230221302.

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, 3393700 + ... + 3399679.

It is an arithmetic number, because the mean of its divisors is an integer number (1283948820).

Almost surely, 2^20312203210 is an apocalyptic number.

20312203210 is an abundant number, since it is smaller than the sum of its proper divisors (20774159030).

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

20312203210 is a wasteful number, since it uses less digits than its factorization.

20312203210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6793422.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20312203210 its reverse (1230221302), we get a palindrome (21542424512).

The spelling of 20312203210 in words is "twenty billion, three hundred twelve million, two hundred three thousand, two hundred ten".