121568336 has 20 divisors (see below), whose sum is σ = 236484864. Its totient is φ = 60540000.

The previous prime is 121568333. The next prime is 121568399. The reversal of 121568336 is 633865121.

It is a junction number, because it is equal to n+sod(n) for n = 121568296 and 121568305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121568333) 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, 11120 + ... + 19151.

Almost surely, 2^121568336 is an apocalyptic number.

121568336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

121568336 is a deficient number, since it is larger than the sum of its proper divisors (114916528).

121568336 is a wasteful number, since it uses less digits than its factorization.

121568336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30530 (or 30524 counting only the distinct ones).

The product of its digits is 25920, while the sum is 35.

The square root of 121568336 is about 11025.8031906977. The cubic root of 121568336 is about 495.3819261041.

The spelling of 121568336 in words is "one hundred twenty-one million, five hundred sixty-eight thousand, three hundred thirty-six".