121940608380 has 48 divisors (see below), whose sum is σ = 349761361824. Its totient is φ = 31724385280.

The previous prime is 121940608319. The next prime is 121940608399. The reversal of 121940608380 is 83806049121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24782217 + ... + 24787136.

It is an arithmetic number, because the mean of its divisors is an integer number (7286695038).

Almost surely, 2^121940608380 is an apocalyptic number.

121940608380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121940608380 is an abundant number, since it is smaller than the sum of its proper divisors (227820753444).

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

121940608380 is a wasteful number, since it uses less digits than its factorization.

121940608380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49569406 (or 49569404 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The spelling of 121940608380 in words is "one hundred twenty-one billion, nine hundred forty million, six hundred eight thousand, three hundred eighty".