131221505314296 has 96 divisors (see below), whose sum is σ = 371724249705120. Its totient is φ = 41739361171200.

The previous prime is 131221505314243. The next prime is 131221505314349. The reversal of 131221505314296 is 692413505122131.

131221505314296 is a `hidden beast` number, since 1 + 3 + 1 + 2 + 21 + 5 + 0 + 531 + 4 + 2 + 96 = 666.

It is an interprime number because it is at equal distance from previous prime (131221505314243) and next prime (131221505314349).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 93412135 + ... + 94806486.

It is an arithmetic number, because the mean of its divisors is an integer number (3872127601095).

Almost surely, 2^{131221505314296} is an apocalyptic number.

It is an amenable number.

131221505314296 is an abundant number, since it is smaller than the sum of its proper divisors (240502744390824).

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

131221505314296 is a wasteful number, since it uses less digits than its factorization.

131221505314296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188219077 (or 188219070 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The spelling of 131221505314296 in words is "one hundred thirty-one trillion, two hundred twenty-one billion, five hundred five million, three hundred fourteen thousand, two hundred ninety-six".