121631788296 has 80 divisors (see below), whose sum is σ = 340760187900. Its totient is φ = 40534580736.

The previous prime is 121631788279. The next prime is 121631788307. The reversal of 121631788296 is 692887136121.

121631788296 is a `hidden beast` number, since 121 + 63 + 178 + 8 + 296 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 121626562500 + 5225796 = 348750^2 + 2286^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3148876 + ... + 3187268.

Almost surely, 2^121631788296 is an apocalyptic number.

It is an amenable number.

121631788296 is an abundant number, since it is smaller than the sum of its proper divisors (219128399604).

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

121631788296 is a wasteful number, since it uses less digits than its factorization.

121631788296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43300 (or 43287 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 54.

The spelling of 121631788296 in words is "one hundred twenty-one billion, six hundred thirty-one million, seven hundred eighty-eight thousand, two hundred ninety-six".