121237280 has 48 divisors (see below), whose sum is σ = 295674624. Its totient is φ = 46928640.

The previous prime is 121237279. The next prime is 121237297. The reversal of 121237280 is 82732121.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7262 + ... + 17181.

It is an arithmetic number, because the mean of its divisors is an integer number (6159888).

Almost surely, 2^121237280 is an apocalyptic number.

121237280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121237280 is an abundant number, since it is smaller than the sum of its proper divisors (174437344).

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

121237280 is a wasteful number, since it uses less digits than its factorization.

121237280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24489 (or 24481 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 121237280 is about 11010.7801721767. The cubic root of 121237280 is about 494.9318411068.

The spelling of 121237280 in words is "one hundred twenty-one million, two hundred thirty-seven thousand, two hundred eighty".