131213111322 has 64 divisors (see below), whose sum is σ = 275657034240. Its totient is φ = 41589075456.

The previous prime is 131213111311. The next prime is 131213111329. The reversal of 131213111322 is 223111312131.

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 (131213111329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7388838 + ... + 7406574.

It is an arithmetic number, because the mean of its divisors is an integer number (4307141160).

Almost surely, 2^131213111322 is an apocalyptic number.

131213111322 is an abundant number, since it is smaller than the sum of its proper divisors (144443922918).

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

131213111322 is a wasteful number, since it uses less digits than its factorization.

131213111322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18535.

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

Adding to 131213111322 its reverse (223111312131), we get a palindrome (354324423453).

The spelling of 131213111322 in words is "one hundred thirty-one billion, two hundred thirteen million, one hundred eleven thousand, three hundred twenty-two".