121383472320 has 448 divisors, whose sum is σ = 469433940480. Its totient is φ = 29281996800.

The previous prime is 121383472297. The next prime is 121383472423. The reversal of 121383472320 is 23274383121.

121383472320 is a `hidden beast` number, since 1 + 2 + 1 + 383 + 47 + 232 + 0 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20050414 + ... + 20056466.

Almost surely, 2^121383472320 is an apocalyptic number.

121383472320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121383472320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (234716970240).

121383472320 is an abundant number, since it is smaller than the sum of its proper divisors (348050468160).

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

121383472320 is a wasteful number, since it uses less digits than its factorization.

121383472320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6301 (or 6285 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The spelling of 121383472320 in words is "one hundred twenty-one billion, three hundred eighty-three million, four hundred seventy-two thousand, three hundred twenty".