121317744 has 20 divisors (see below), whose sum is σ = 313404296. Its totient is φ = 40439232.

The previous prime is 121317743. The next prime is 121317761. The reversal of 121317744 is 447713121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121317743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1263679 + ... + 1263774.

Almost surely, 2^121317744 is an apocalyptic number.

It is an amenable number.

121317744 is an abundant number, since it is smaller than the sum of its proper divisors (192086552).

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

121317744 is a wasteful number, since it uses less digits than its factorization.

121317744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2527464 (or 2527458 counting only the distinct ones).

The product of its digits is 4704, while the sum is 30.

The square root of 121317744 is about 11014.4334398098. The cubic root of 121317744 is about 495.0413107039.

The spelling of 121317744 in words is "one hundred twenty-one million, three hundred seventeen thousand, seven hundred forty-four".