121443113 has 8 divisors (see below), whose sum is σ = 133700160. Its totient is φ = 109388880.

The previous prime is 121443103. The next prime is 121443163. The reversal of 121443113 is 311344121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121443113 - 2⁸ = 121442857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121443103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49445 + ... + 51842.

It is an arithmetic number, because the mean of its divisors is an integer number (16712520).

Almost surely, 2^121443113 is an apocalyptic number.

It is an amenable number.

121443113 is a deficient number, since it is larger than the sum of its proper divisors (12257047).

121443113 is a wasteful number, since it uses less digits than its factorization.

121443113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101407.

The product of its digits is 288, while the sum is 20.

The square root of 121443113 is about 11020.1230936864. The cubic root of 121443113 is about 495.2117761990.

Adding to 121443113 its reverse (311344121), we get a palindrome (432787234).

The spelling of 121443113 in words is "one hundred twenty-one million, four hundred forty-three thousand, one hundred thirteen".