131122200312 has 48 divisors (see below), whose sum is σ = 356264560080. Its totient is φ = 43566854400.

The previous prime is 131122200311. The next prime is 131122200329. The reversal of 131122200312 is 213002221131.

131122200312 is a `hidden beast` number, since 1 + 31 + 122 + 200 + 312 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131122200311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2905489 + ... + 2950272.

It is an arithmetic number, because the mean of its divisors is an integer number (7422178335).

Almost surely, 2^131122200312 is an apocalyptic number.

131122200312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131122200312 is an abundant number, since it is smaller than the sum of its proper divisors (225142359768).

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

131122200312 is a wasteful number, since it uses less digits than its factorization.

131122200312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5856084 (or 5856077 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 131122200312 its reverse (213002221131), we get a palindrome (344124421443).

The spelling of 131122200312 in words is "one hundred thirty-one billion, one hundred twenty-two million, two hundred thousand, three hundred twelve".