131313210031212 has 24 divisors (see below), whose sum is σ = 334251807352512. Its totient is φ = 39791881827600.

The previous prime is 131313210031207. The next prime is 131313210031271. The reversal of 131313210031212 is 212130012313131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 497398522714 + ... + 497398522977.

It is an arithmetic number, because the mean of its divisors is an integer number (13927158639688).

Almost surely, 2^{131313210031212} is an apocalyptic number.

131313210031212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131313210031212 is an abundant number, since it is smaller than the sum of its proper divisors (202938597321300).

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

131313210031212 is a wasteful number, since it uses less digits than its factorization.

131313210031212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994797045709 (or 994797045707 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 131313210031212 its reverse (212130012313131), we get a palindrome (343443222344343).

The spelling of 131313210031212 in words is "one hundred thirty-one trillion, three hundred thirteen billion, two hundred ten million, thirty-one thousand, two hundred twelve".