131131013231320 has 64 divisors (see below), whose sum is σ = 306412350520320. Its totient is φ = 50467916467584.

The previous prime is 131131013231279. The next prime is 131131013231389. The reversal of 131131013231320 is 23132310131131.

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, 568832232 + ... + 569062711.

It is an arithmetic number, because the mean of its divisors is an integer number (4787692976880).

Almost surely, 2^{131131013231320} is an apocalyptic number.

131131013231320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131131013231320 is an abundant number, since it is smaller than the sum of its proper divisors (175281337289000).

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

131131013231320 is a wasteful number, since it uses less digits than its factorization.

131131013231320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1137895064 (or 1137895060 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 131131013231320 its reverse (23132310131131), we get a palindrome (154263323362451).

The spelling of 131131013231320 in words is "one hundred thirty-one trillion, one hundred thirty-one billion, thirteen million, two hundred thirty-one thousand, three hundred twenty".