121977300 has 36 divisors (see below), whose sum is σ = 352921856. Its totient is φ = 32527200.

The previous prime is 121977253. The next prime is 121977311. The reversal of 121977300 is 3779121.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a nialpdrome in base 15.

It is a congruent 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, 202996 + ... + 203595.

Almost surely, 2^121977300 is an apocalyptic number.

121977300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121977300 is an abundant number, since it is smaller than the sum of its proper divisors (230944556).

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

121977300 is a wasteful number, since it uses less digits than its factorization.

121977300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406608 (or 406601 counting only the distinct ones).

The product of its (nonzero) digits is 2646, while the sum is 30.

The square root of 121977300 is about 11044.3333886659. Note that the first 4 decimals coincide. The cubic root of 121977300 is about 495.9368036463.

The spelling of 121977300 in words is "one hundred twenty-one million, nine hundred seventy-seven thousand, three hundred".