131881956250 has 48 divisors (see below), whose sum is σ = 269741422944. Its totient is φ = 47957050000.

The previous prime is 131881956247. The next prime is 131881956251. The reversal of 131881956250 is 52659188131.

It is a junction number, because it is equal to n+sod(n) for n = 131881956194 and 131881956203.

It is not an unprimeable number, because it can be changed into a prime (131881956251) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 890392 + ... + 1027891.

It is an arithmetic number, because the mean of its divisors is an integer number (5619612978).

Almost surely, 2^131881956250 is an apocalyptic number.

131881956250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131881956250 is an abundant number, since it is smaller than the sum of its proper divisors (137859466694).

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

131881956250 is an equidigital number, since it uses as much as digits as its factorization.

131881956250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1918321 (or 1918301 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 49.

The spelling of 131881956250 in words is "one hundred thirty-one billion, eight hundred eighty-one million, nine hundred fifty-six thousand, two hundred fifty".