121009206423504 has 120 divisors (see below), whose sum is σ = 363681634418400. Its totient is φ = 34570577164032.

The previous prime is 121009206423403. The next prime is 121009206423577. The reversal of 121009206423504 is 405324602900121.

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, 20814387 + ... + 25985709.

It is an arithmetic number, because the mean of its divisors is an integer number (3030680286820).

Almost surely, 2^{121009206423504} is an apocalyptic number.

121009206423504 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

121009206423504 is an abundant number, since it is smaller than the sum of its proper divisors (242672427994896).

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

121009206423504 is a wasteful number, since it uses less digits than its factorization.

121009206423504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5181297 (or 5181284 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The spelling of 121009206423504 in words is "one hundred twenty-one trillion, nine billion, two hundred six million, four hundred twenty-three thousand, five hundred four".