131361078212 has 24 divisors (see below), whose sum is σ = 282931553856. Its totient is φ = 51967019808.

The previous prime is 131361078197. The next prime is 131361078241. The reversal of 131361078212 is 212870163131.

It is a super-2 number, since 2×131361078212² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180440678 + ... + 180441405.

It is an arithmetic number, because the mean of its divisors is an integer number (11788814744).

Almost surely, 2^131361078212 is an apocalyptic number.

It is an amenable number.

131361078212 is an abundant number, since it is smaller than the sum of its proper divisors (151570475644).

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

131361078212 is a wasteful number, since it uses less digits than its factorization.

131361078212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360882107 (or 360882105 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 35.

The spelling of 131361078212 in words is "one hundred thirty-one billion, three hundred sixty-one million, seventy-eight thousand, two hundred twelve".