131032232220020 has 48 divisors (see below), whose sum is σ = 275282741438208. Its totient is φ = 52390981119360.

The previous prime is 131032232220013. The next prime is 131032232220209. The reversal of 131032232220020 is 20022232230131.

It is a super-2 number, since 2×131032232220020² (a number of 29 digits) contains 22 as substring.

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, 697342322 + ... + 697530198.

It is an arithmetic number, because the mean of its divisors is an integer number (5735057113296).

Almost surely, 2^{131032232220020} is an apocalyptic number.

131032232220020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131032232220020 is an abundant number, since it is smaller than the sum of its proper divisors (144250509218188).

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

131032232220020 is a wasteful number, since it uses less digits than its factorization.

131032232220020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202280 (or 202278 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 131032232220020 its reverse (20022232230131), we get a palindrome (151054464450151).

The spelling of 131032232220020 in words is "one hundred thirty-one trillion, thirty-two billion, two hundred thirty-two million, two hundred twenty thousand, twenty".