131112313122 has 32 divisors (see below), whose sum is σ = 302434704000. Its totient is φ = 37116983808.

The previous prime is 131112313103. The next prime is 131112313139. The reversal of 131112313122 is 221313211131.

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 (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14315247 + ... + 14324402.

It is an arithmetic number, because the mean of its divisors is an integer number (9451084500).

Almost surely, 2^131112313122 is an apocalyptic number.

131112313122 is an abundant number, since it is smaller than the sum of its proper divisors (171322390878).

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

131112313122 is a wasteful number, since it uses less digits than its factorization.

131112313122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28639770.

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

Adding to 131112313122 its reverse (221313211131), we get a palindrome (352425524253).

The spelling of 131112313122 in words is "one hundred thirty-one billion, one hundred twelve million, three hundred thirteen thousand, one hundred twenty-two".