121331600 has 60 divisors (see below), whose sum is σ = 313935636. Its totient is φ = 44797440.

The previous prime is 121331531. The next prime is 121331627. The reversal of 121331600 is 6133121.

It can be written as a sum of positive squares in 6 ways, for example, as 42406144 + 78925456 = 6512^2 + 8884^2 .

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, 6467 + ... + 16866.

Almost surely, 2^121331600 is an apocalyptic number.

121331600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121331600 is an abundant number, since it is smaller than the sum of its proper divisors (192604036).

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

121331600 is a wasteful number, since it uses less digits than its factorization.

121331600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23364 (or 23353 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 121331600 is about 11015.0624147120. The cubic root of 121331600 is about 495.0601566178.

Adding to 121331600 its reverse (6133121), we get a palindrome (127464721).

The spelling of 121331600 in words is "one hundred twenty-one million, three hundred thirty-one thousand, six hundred".