131396513340 has 48 divisors (see below), whose sum is σ = 367940270880. Its totient is φ = 35036209920.

The previous prime is 131396513327. The next prime is 131396513351. The reversal of 131396513340 is 43315693131.

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, 710970 + ... + 876510.

It is an arithmetic number, because the mean of its divisors is an integer number (7665422310).

Almost surely, 2^131396513340 is an apocalyptic number.

131396513340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131396513340 is an abundant number, since it is smaller than the sum of its proper divisors (236543757540).

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

131396513340 is a wasteful number, since it uses less digits than its factorization.

131396513340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178782 (or 178780 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 39.

The spelling of 131396513340 in words is "one hundred thirty-one billion, three hundred ninety-six million, five hundred thirteen thousand, three hundred forty".