131310231320 has 16 divisors (see below), whose sum is σ = 295448020560. Its totient is φ = 52524092512.

The previous prime is 131310231307. The next prime is 131310231337. The reversal of 131310231320 is 23132013131.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 131310231292 and 131310231301.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1641377852 + ... + 1641377931.

It is an arithmetic number, because the mean of its divisors is an integer number (18465501285).

Almost surely, 2^131310231320 is an apocalyptic number.

131310231320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131310231320 is an abundant number, since it is smaller than the sum of its proper divisors (164137789240).

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

131310231320 is a wasteful number, since it uses less digits than its factorization.

131310231320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3282755794 (or 3282755790 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 131310231320 its reverse (23132013131), we get a palindrome (154442244451).

The spelling of 131310231320 in words is "one hundred thirty-one billion, three hundred ten million, two hundred thirty-one thousand, three hundred twenty".