220312131100 has 36 divisors (see below), whose sum is σ = 478102731064. Its totient is φ = 88120169280.

The previous prime is 220312131089. The next prime is 220312131113. The reversal of 220312131100 is 1131213022.

220312131100 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2308939 + ... + 2402461.

Almost surely, 2^220312131100 is an apocalyptic number.

220312131100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220312131100 is an abundant number, since it is smaller than the sum of its proper divisors (257790599964).

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

220312131100 is a wasteful number, since it uses less digits than its factorization.

220312131100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117094 (or 117087 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 220312131100 its reverse (1131213022), we get a palindrome (221443344122).

The spelling of 220312131100 in words is "two hundred twenty billion, three hundred twelve million, one hundred thirty-one thousand, one hundred".