121323200 has 84 divisors (see below), whose sum is σ = 300849792. Its totient is φ = 48153600.

The previous prime is 121323199. The next prime is 121323221. The reversal of 121323200 is 2323121.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 305402 + ... + 305798.

Almost surely, 2^121323200 is an apocalyptic number.

121323200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121323200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150424896).

121323200 is an abundant number, since it is smaller than the sum of its proper divisors (179526592).

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

121323200 is a wasteful number, since it uses less digits than its factorization.

121323200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610 (or 595 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 121323200 is about 11014.6811120431. The cubic root of 121323200 is about 495.0487317258.

Adding to 121323200 its reverse (2323121), we get a palindrome (123646321).

The spelling of 121323200 in words is "one hundred twenty-one million, three hundred twenty-three thousand, two hundred".