121280368 has 20 divisors (see below), whose sum is σ = 256342968. Its totient is φ = 55127360.

The previous prime is 121280333. The next prime is 121280371. The reversal of 121280368 is 863082121.

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, 344371 + ... + 344722.

Almost surely, 2^121280368 is an apocalyptic number.

It is an amenable number.

121280368 is an abundant number, since it is smaller than the sum of its proper divisors (135062600).

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

121280368 is a wasteful number, since it uses less digits than its factorization.

121280368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689112 (or 689106 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 121280368 is about 11012.7366262887. The cubic root of 121280368 is about 494.9904674558.

The spelling of 121280368 in words is "one hundred twenty-one million, two hundred eighty thousand, three hundred sixty-eight".