131242200021012 has 24 divisors (see below), whose sum is σ = 306236606449536. Its totient is φ = 43746713378368.

The previous prime is 131242200020947. The next prime is 131242200021013. The reversal of 131242200021012 is 210120002242131.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 131242200021012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131242200021013) 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, 85031868 + ... + 86561555.

It is an arithmetic number, because the mean of its divisors is an integer number (12759858602064).

Almost surely, 2^{131242200021012} is an apocalyptic number.

131242200021012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131242200021012 is an abundant number, since it is smaller than the sum of its proper divisors (174994406428524).

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

131242200021012 is a wasteful number, since it uses less digits than its factorization.

131242200021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171657167 (or 171657165 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 131242200021012 its reverse (210120002242131), we get a palindrome (341362202263143).

The spelling of 131242200021012 in words is "one hundred thirty-one trillion, two hundred forty-two billion, two hundred million, twenty-one thousand, twelve".