121360320 has 84 divisors (see below), whose sum is σ = 417438840. Its totient is φ = 32361984.

The previous prime is 121360279. The next prime is 121360321. The reversal of 121360320 is 23063121.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 121360293 and 121360302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121360321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18190 + ... + 23949.

It is an arithmetic number, because the mean of its divisors is an integer number (4969510).

Almost surely, 2^121360320 is an apocalyptic number.

121360320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121360320 is an abundant number, since it is smaller than the sum of its proper divisors (296078520).

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

121360320 is a wasteful number, since it uses less digits than its factorization.

121360320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42162 (or 42149 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 121360320 is about 11016.3660069916. The cubic root of 121360320 is about 495.0992148846.

The spelling of 121360320 in words is "one hundred twenty-one million, three hundred sixty thousand, three hundred twenty".