131343232020400 has 30 divisors (see below), whose sum is σ = 315552114929972. Its totient is φ = 52537292808000.

The previous prime is 131343232020349. The next prime is 131343232020601. The reversal of 131343232020400 is 4020232343131.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 164179039626 + ... + 164179040425.

Almost surely, 2^{131343232020400} is an apocalyptic number.

131343232020400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131343232020400 is an abundant number, since it is smaller than the sum of its proper divisors (184208882909572).

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

131343232020400 is a wasteful number, since it uses less digits than its factorization.

131343232020400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328358080069 (or 328358080058 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 131343232020400 its reverse (4020232343131), we get a palindrome (135363464363531).

The spelling of 131343232020400 in words is "one hundred thirty-one trillion, three hundred forty-three billion, two hundred thirty-two million, twenty thousand, four hundred".