131312311122 has 16 divisors (see below), whose sum is σ = 262642519872. Its totient is φ = 43767787440.

The previous prime is 131312311061. The next prime is 131312311129. The reversal of 131312311122 is 221113213131.

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

It is not an unprimeable number, because it can be changed into a prime (131312311129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 649398 + ... + 827249.

It is an arithmetic number, because the mean of its divisors is an integer number (16415157492).

Almost surely, 2^131312311122 is an apocalyptic number.

131312311122 is an abundant number, since it is smaller than the sum of its proper divisors (131330208750).

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

131312311122 is a wasteful number, since it uses less digits than its factorization.

131312311122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1491473.

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

Adding to 131312311122 its reverse (221113213131), we get a palindrome (352425524253).

The spelling of 131312311122 in words is "one hundred thirty-one billion, three hundred twelve million, three hundred eleven thousand, one hundred twenty-two".