121416513500 has 24 divisors (see below), whose sum is σ = 265173666576. Its totient is φ = 48566605200.

The previous prime is 121416513499. The next prime is 121416513511. The reversal of 121416513500 is 5315614121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121416014 + ... + 121417013.

It is an arithmetic number, because the mean of its divisors is an integer number (11048902774).

Almost surely, 2^121416513500 is an apocalyptic number.

121416513500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121416513500 is an abundant number, since it is smaller than the sum of its proper divisors (143757153076).

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

121416513500 is a wasteful number, since it uses less digits than its factorization.

121416513500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242833046 (or 242833034 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 29.

The spelling of 121416513500 in words is "one hundred twenty-one billion, four hundred sixteen million, five hundred thirteen thousand, five hundred".