121383888 has 20 divisors (see below), whose sum is σ = 313575168. Its totient is φ = 40461280.

The previous prime is 121383887. The next prime is 121383901. The reversal of 121383888 is 888383121.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121383887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1264368 + ... + 1264463.

Almost surely, 2^121383888 is an apocalyptic number.

It is an amenable number.

121383888 is an abundant number, since it is smaller than the sum of its proper divisors (192191280).

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

121383888 is a wasteful number, since it uses less digits than its factorization.

121383888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2528842 (or 2528836 counting only the distinct ones).

The product of its digits is 73728, while the sum is 42.

The square root of 121383888 is about 11017.4356362994. The cubic root of 121383888 is about 495.1312619959.

The spelling of 121383888 in words is "one hundred twenty-one million, three hundred eighty-three thousand, eight hundred eighty-eight".