121903734144 has 32 divisors (see below), whose sum is σ = 323806794840. Its totient is φ = 40634577920.

The previous prime is 121903734107. The next prime is 121903734241. The reversal of 121903734144 is 441437309121.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158728437 + ... + 158729204.

Almost surely, 2^121903734144 is an apocalyptic number.

It is an amenable number.

121903734144 is an abundant number, since it is smaller than the sum of its proper divisors (201903060696).

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

121903734144 is an equidigital number, since it uses as much as digits as its factorization.

121903734144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317457658 (or 317457646 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The spelling of 121903734144 in words is "one hundred twenty-one billion, nine hundred three million, seven hundred thirty-four thousand, one hundred forty-four".