131322012012 has 36 divisors (see below), whose sum is σ = 351479504376. Its totient is φ = 41199062400.

The previous prime is 131322012011. The next prime is 131322012067. The reversal of 131322012012 is 210210223131.

131322012012 is a `hidden beast` number, since 1 + 313 + 220 + 120 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is not an unprimeable number, because it can be changed into a prime (131322012011) 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, 107288614 + ... + 107289837.

It is an arithmetic number, because the mean of its divisors is an integer number (9763319566).

Almost surely, 2^131322012012 is an apocalyptic number.

131322012012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131322012012 is an abundant number, since it is smaller than the sum of its proper divisors (220157492364).

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

131322012012 is a wasteful number, since it uses less digits than its factorization.

131322012012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214578478 (or 214578473 counting only the distinct ones).

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

Adding to 131322012012 its reverse (210210223131), we get a palindrome (341532235143).

The spelling of 131322012012 in words is "one hundred thirty-one billion, three hundred twenty-two million, twelve thousand, twelve".