131111310320 has 160 divisors (see below), whose sum is σ = 330568128000. Its totient is φ = 48199560192.

The previous prime is 131111310311. The next prime is 131111310347. The reversal of 131111310320 is 23013111131.

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, 9731909 + ... + 9745371.

It is an arithmetic number, because the mean of its divisors is an integer number (2066050800).

Almost surely, 2^131111310320 is an apocalyptic number.

131111310320 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 131111310320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165284064000).

131111310320 is an abundant number, since it is smaller than the sum of its proper divisors (199456817680).

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

131111310320 is a wasteful number, since it uses less digits than its factorization.

131111310320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13687 (or 13681 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 131111310320 its reverse (23013111131), we get a palindrome (154124421451).

The spelling of 131111310320 in words is "one hundred thirty-one billion, one hundred eleven million, three hundred ten thousand, three hundred twenty".