121423974048 has 144 divisors (see below), whose sum is σ = 385633868256. Its totient is φ = 37361191680.

The previous prime is 121423974047. The next prime is 121423974079. The reversal of 121423974048 is 840479324121.

121423974048 is a `hidden beast` number, since 1 + 2 + 1 + 4 + 239 + 7 + 404 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a junction number, because it is equal to n+sod(n) for n = 121423973994 and 121423974012.

It is not an unprimeable number, because it can be changed into a prime (121423974047) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 499498 + ... + 701673.

It is an arithmetic number, because the mean of its divisors is an integer number (2678012974).

Almost surely, 2^121423974048 is an apocalyptic number.

121423974048 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

121423974048 is an abundant number, since it is smaller than the sum of its proper divisors (264209894208).

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

121423974048 is a wasteful number, since it uses less digits than its factorization.

121423974048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1201209 (or 1201189 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 121423974048 in words is "one hundred twenty-one billion, four hundred twenty-three million, nine hundred seventy-four thousand, forty-eight".