121324188 has 12 divisors (see below), whose sum is σ = 283089800. Its totient is φ = 40441392.

The previous prime is 121324187. The next prime is 121324211. The reversal of 121324188 is 881423121.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121324183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5055163 + ... + 5055186.

Almost surely, 2^121324188 is an apocalyptic number.

It is an amenable number.

121324188 is an abundant number, since it is smaller than the sum of its proper divisors (161765612).

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

121324188 is a wasteful number, since it uses less digits than its factorization.

121324188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10110356 (or 10110354 counting only the distinct ones).

The product of its digits is 3072, while the sum is 30.

The square root of 121324188 is about 11014.7259611849. The cubic root of 121324188 is about 495.0500755381.

The spelling of 121324188 in words is "one hundred twenty-one million, three hundred twenty-four thousand, one hundred eighty-eight".