131033432240 has 40 divisors (see below), whose sum is σ = 304718139648. Its totient is φ = 52402119680.

The previous prime is 131033432219. The next prime is 131033432251. The reversal of 131033432240 is 42234330131.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204209 + ... + 551151.

Almost surely, 2^131033432240 is an apocalyptic number.

131033432240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131033432240 is an abundant number, since it is smaller than the sum of its proper divisors (173684707408).

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

131033432240 is a wasteful number, since it uses less digits than its factorization.

131033432240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351677 (or 351671 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 131033432240 its reverse (42234330131), we get a palindrome (173267762371).

The spelling of 131033432240 in words is "one hundred thirty-one billion, thirty-three million, four hundred thirty-two thousand, two hundred forty".