131121313051212 has 36 divisors (see below), whose sum is σ = 361576954172616. Its totient is φ = 39733731227520.

The previous prime is 131121313051193. The next prime is 131121313051231. The reversal of 131121313051212 is 212150313121131.

131121313051212 is a `hidden beast` number, since 1 + 3 + 1 + 1 + 2 + 1 + 3 + 130 + 512 + 12 = 666.

It is an interprime number because it is at equal distance from previous prime (131121313051193) and next prime (131121313051231).

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 165557213053 + ... + 165557213844.

Almost surely, 2^{131121313051212} is an apocalyptic number.

131121313051212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131121313051212 is an abundant number, since it is smaller than the sum of its proper divisors (230455641121404).

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

131121313051212 is a wasteful number, since it uses less digits than its factorization.

131121313051212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331114426918 (or 331114426913 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

Adding to 131121313051212 its reverse (212150313121131), we get a palindrome (343271626172343).

The spelling of 131121313051212 in words is "one hundred thirty-one trillion, one hundred twenty-one billion, three hundred thirteen million, fifty-one thousand, two hundred twelve".