121432300 has 72 divisors (see below), whose sum is σ = 290575152. Its totient is φ = 43680000.

The previous prime is 121432291. The next prime is 121432321. The reversal of 121432300 is 3234121.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110554 + ... + 111646.

It is an arithmetic number, because the mean of its divisors is an integer number (4035766).

Almost surely, 2^121432300 is an apocalyptic number.

121432300 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 121432300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145287576).

121432300 is an abundant number, since it is smaller than the sum of its proper divisors (169142852).

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

121432300 is a wasteful number, since it uses less digits than its factorization.

121432300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1219 (or 1212 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 121432300 is about 11019.6324802599. The cubic root of 121432300 is about 495.1970782780.

Adding to 121432300 its reverse (3234121), we get a palindrome (124666421).

The spelling of 121432300 in words is "one hundred twenty-one million, four hundred thirty-two thousand, three hundred".