121844056320 has 216 divisors, whose sum is σ = 481792024896. Its totient is φ = 27850051584.

The previous prime is 121844056319. The next prime is 121844056379. The reversal of 121844056320 is 23650448121.

It is a happy number.

121844056320 is a `hidden beast` number, since 1 + 2 + 18 + 4 + 4 + 0 + 5 + 632 + 0 = 666.

It is a super-2 number, since 2×121844056320² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 674842 + ... + 836121.

Almost surely, 2^121844056320 is an apocalyptic number.

121844056320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121844056320 is an abundant number, since it is smaller than the sum of its proper divisors (359947968576).

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

121844056320 is a wasteful number, since it uses less digits than its factorization.

121844056320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1510997 (or 1510980 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 121844056320 in words is "one hundred twenty-one billion, eight hundred forty-four million, fifty-six thousand, three hundred twenty".