121132400 has 30 divisors (see below), whose sum is σ = 291021552. Its totient is φ = 48452800.

The previous prime is 121132399. The next prime is 121132411. The reversal of 121132400 is 4231121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 151016 + ... + 151815.

Almost surely, 2^121132400 is an apocalyptic number.

121132400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121132400 is an abundant number, since it is smaller than the sum of its proper divisors (169889152).

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

121132400 is a wasteful number, since it uses less digits than its factorization.

121132400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302849 (or 302838 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 121132400 is about 11006.0165364222. The cubic root of 121132400 is about 494.7890813137.

Adding to 121132400 its reverse (4231121), we get a palindrome (125363521).

The spelling of 121132400 in words is "one hundred twenty-one million, one hundred thirty-two thousand, four hundred".