131312111322 has 64 divisors (see below), whose sum is σ = 301514185728. Its totient is φ = 37346400000.

The previous prime is 131312111317. The next prime is 131312111339. The reversal of 131312111322 is 223111213131.

131312111322 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28787922 + ... + 28792482.

It is an arithmetic number, because the mean of its divisors is an integer number (4711159152).

Almost surely, 2^131312111322 is an apocalyptic number.

131312111322 is an abundant number, since it is smaller than the sum of its proper divisors (170202074406).

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

131312111322 is a wasteful number, since it uses less digits than its factorization.

131312111322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7555.

The product of its digits is 216, while the sum is 21.

Adding to 131312111322 its reverse (223111213131), we get a palindrome (354423324453).

The spelling of 131312111322 in words is "one hundred thirty-one billion, three hundred twelve million, one hundred eleven thousand, three hundred twenty-two".