131232021292 has 12 divisors (see below), whose sum is σ = 232023625960. Its totient is φ = 64939556736.

The previous prime is 131232021259. The next prime is 131232021293. The reversal of 131232021292 is 292120232131.

It is a self number, because there is not a number n which added to its sum of digits gives 131232021292.

It is not an unprimeable number, because it can be changed into a prime (131232021293) by changing a digit.

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, 169113042 + ... + 169113817.

Almost surely, 2^131232021292 is an apocalyptic number.

It is an amenable number.

131232021292 is a deficient number, since it is larger than the sum of its proper divisors (100791604668).

131232021292 is a wasteful number, since it uses less digits than its factorization.

131232021292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338226960 (or 338226958 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The spelling of 131232021292 in words is "one hundred thirty-one billion, two hundred thirty-two million, twenty-one thousand, two hundred ninety-two".