121997304 has 288 divisors, whose sum is σ = 422407440. Its totient is φ = 31334400.

The previous prime is 121997273. The next prime is 121997339. The reversal of 121997304 is 403799121.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2975524 + ... + 2975564.

Almost surely, 2^121997304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121997304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (211203720).

121997304 is an abundant number, since it is smaller than the sum of its proper divisors (300410136).

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

121997304 is a wasteful number, since it uses less digits than its factorization.

121997304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111 (or 87 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 121997304 is about 11045.2389743274. The cubic root of 121997304 is about 495.9639130006.

It can be divided in two parts, 12199 and 7304, that added together give a triangular number (19503 = T₁₉₇).

The spelling of 121997304 in words is "one hundred twenty-one million, nine hundred ninety-seven thousand, three hundred four".