131719312612 has 12 divisors (see below), whose sum is σ = 230519124220. Its totient is φ = 65856705696.

The previous prime is 131719312567. The next prime is 131719312631. The reversal of 131719312612 is 216213917131.

It can be written as a sum of positive squares in 2 ways, for example, as 74384925696 + 57334386916 = 272736^2 + 239446^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 635643 + ... + 816994.

Almost surely, 2^131719312612 is an apocalyptic number.

It is an amenable number.

131719312612 is a deficient number, since it is larger than the sum of its proper divisors (98799811608).

131719312612 is a wasteful number, since it uses less digits than its factorization.

131719312612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1475310 (or 1475308 counting only the distinct ones).

The product of its digits is 13608, while the sum is 37.

The spelling of 131719312612 in words is "one hundred thirty-one billion, seven hundred nineteen million, three hundred twelve thousand, six hundred twelve".