131113331320 has 128 divisors (see below), whose sum is σ = 309553928640. Its totient is φ = 49933578240.

The previous prime is 131113331303. The next prime is 131113331347. The reversal of 131113331320 is 23133311131.

It is a junction number, because it is equal to n+sod(n) for n = 131113331291 and 131113331300.

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, 14307540 + ... + 14316700.

Almost surely, 2^131113331320 is an apocalyptic number.

131113331320 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 131113331320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154776964320).

131113331320 is an abundant number, since it is smaller than the sum of its proper divisors (178440597320).

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

131113331320 is a wasteful number, since it uses less digits than its factorization.

131113331320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9425 (or 9421 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 131113331320 its reverse (23133311131), we get a palindrome (154246642451).

The spelling of 131113331320 in words is "one hundred thirty-one billion, one hundred thirteen million, three hundred thirty-one thousand, three hundred twenty".