131331322320 has 160 divisors (see below), whose sum is σ = 445829750784. Its totient is φ = 31716672000.

The previous prime is 131331322319. The next prime is 131331322333. The reversal of 131331322320 is 23223133131.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 599745 + ... + 788895.

Almost surely, 2^131331322320 is an apocalyptic number.

131331322320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131331322320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222914875392).

131331322320 is an abundant number, since it is smaller than the sum of its proper divisors (314498428464).

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

131331322320 is a wasteful number, since it uses less digits than its factorization.

131331322320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189441 (or 189435 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 131331322320 its reverse (23223133131), we get a palindrome (154554455451).

The spelling of 131331322320 in words is "one hundred thirty-one billion, three hundred thirty-one million, three hundred twenty-two thousand, three hundred twenty".