121372902750528 has 672 divisors, whose sum is σ = 422114867020800. Its totient is φ = 33900709939200.

The previous prime is 121372902750487. The next prime is 121372902750557. The reversal of 121372902750528 is 825057209273121.

It is a happy number.

121372902750528 is a `hidden beast` number, since 1 + 2 + 1 + 3 + 7 + 2 + 90 + 27 + 5 + 0 + 528 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2219707893 + ... + 2219762571.

Almost surely, 2^{121372902750528} is an apocalyptic number.

121372902750528 is a gapful number since it is divisible by the number (18) 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 121372902750528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (211057433510400).

121372902750528 is an abundant number, since it is smaller than the sum of its proper divisors (300741964270272).

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

121372902750528 is a wasteful number, since it uses less digits than its factorization.

121372902750528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55428 (or 55399 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 54.

The spelling of 121372902750528 in words is "one hundred twenty-one trillion, three hundred seventy-two billion, nine hundred two million, seven hundred fifty thousand, five hundred twenty-eight".