121300320 has 48 divisors (see below), whose sum is σ = 382097520. Its totient is φ = 32346624.

The previous prime is 121300297. The next prime is 121300327. The reversal of 121300320 is 23003121.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 121300296 and 121300305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121300327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125875 + ... + 126834.

It is an arithmetic number, because the mean of its divisors is an integer number (7960365).

Almost surely, 2^121300320 is an apocalyptic number.

121300320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121300320 is an abundant number, since it is smaller than the sum of its proper divisors (260797200).

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

121300320 is a wasteful number, since it uses less digits than its factorization.

121300320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252727 (or 252719 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 121300320 is about 11013.6424492536. The cubic root of 121300320 is about 495.0176098214.

Adding to 121300320 its reverse (23003121), we get a palindrome (144303441).

The spelling of 121300320 in words is "one hundred twenty-one million, three hundred thousand, three hundred twenty".