121321968 has 20 divisors (see below), whose sum is σ = 313415208. Its totient is φ = 40440640.

The previous prime is 121321951. The next prime is 121321999. The reversal of 121321968 is 869123121.

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, 1263723 + ... + 1263818.

Almost surely, 2^121321968 is an apocalyptic number.

It is an amenable number.

121321968 is an abundant number, since it is smaller than the sum of its proper divisors (192093240).

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

121321968 is a wasteful number, since it uses less digits than its factorization.

121321968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2527552 (or 2527546 counting only the distinct ones).

The product of its digits is 5184, while the sum is 33.

The square root of 121321968 is about 11014.6251865418. The cubic root of 121321968 is about 495.0470560306.

The spelling of 121321968 in words is "one hundred twenty-one million, three hundred twenty-one thousand, nine hundred sixty-eight".