121363120 has 20 divisors (see below), whose sum is σ = 282169440. Its totient is φ = 48545216.

The previous prime is 121363097. The next prime is 121363129. The reversal of 121363120 is 21363121.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×121363120² = 29458013792268800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121363129) 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, 758440 + ... + 758599.

It is an arithmetic number, because the mean of its divisors is an integer number (14108472).

Almost surely, 2^121363120 is an apocalyptic number.

121363120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121363120 is an abundant number, since it is smaller than the sum of its proper divisors (160806320).

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

121363120 is a wasteful number, since it uses less digits than its factorization.

121363120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1517052 (or 1517046 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 121363120 is about 11016.4930899084. The cubic root of 121363120 is about 495.1030224639.

Subtracting from 121363120 its reverse (21363121), we obtain a palindrome (99999999).

The spelling of 121363120 in words is "one hundred twenty-one million, three hundred sixty-three thousand, one hundred twenty".