131812272531820 has 48 divisors (see below), whose sum is σ = 276851929971456. Its totient is φ = 52716118016000.

The previous prime is 131812272531767. The next prime is 131812272531847. The reversal of 131812272531820 is 28135272218131.

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, 4962611340 + ... + 4962637900.

It is an arithmetic number, because the mean of its divisors is an integer number (5767748541072).

Almost surely, 2^{131812272531820} is an apocalyptic number.

131812272531820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131812272531820 is an abundant number, since it is smaller than the sum of its proper divisors (145039657439636).

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

131812272531820 is a wasteful number, since it uses less digits than its factorization.

131812272531820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58602 (or 58600 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 46.

The spelling of 131812272531820 in words is "one hundred thirty-one trillion, eight hundred twelve billion, two hundred seventy-two million, five hundred thirty-one thousand, eight hundred twenty".