121308073920 has 168 divisors, whose sum is σ = 455181096240. Its totient is φ = 29408010240.

The previous prime is 121308073883. The next prime is 121308073933. The reversal of 121308073920 is 29370803121.

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

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, 1882905 + ... + 1946264.

Almost surely, 2^121308073920 is an apocalyptic number.

121308073920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121308073920 is an abundant number, since it is smaller than the sum of its proper divisors (333873022320).

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

121308073920 is a wasteful number, since it uses less digits than its factorization.

121308073920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3829203 (or 3829190 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The spelling of 121308073920 in words is "one hundred twenty-one billion, three hundred eight million, seventy-three thousand, nine hundred twenty".