121430200 has 24 divisors (see below), whose sum is σ = 282325680. Its totient is φ = 48572000.

The previous prime is 121430191. The next prime is 121430207. The reversal of 121430200 is 2034121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121430207) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 303376 + ... + 303775.

It is an arithmetic number, because the mean of its divisors is an integer number (11763570).

Almost surely, 2^121430200 is an apocalyptic number.

121430200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121430200 is an abundant number, since it is smaller than the sum of its proper divisors (160895480).

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

121430200 is a wasteful number, since it uses less digits than its factorization.

121430200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607167 (or 607158 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 121430200 is about 11019.5371953635. The cubic root of 121430200 is about 495.1942236836.

Adding to 121430200 its reverse (2034121), we get a palindrome (123464321).

The spelling of 121430200 in words is "one hundred twenty-one million, four hundred thirty thousand, two hundred".