111885121 has 8 divisors (see below), whose sum is σ = 113442560. Its totient is φ = 110337552.

The previous prime is 111885101. The next prime is 111885139. The reversal of 111885121 is 121588111.

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 111885121 - 2¹³ = 111876929 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111885121.

It is not an unprimeable number, because it can be changed into a prime (111885101) 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, 22006 + ... + 26608.

It is an arithmetic number, because the mean of its divisors is an integer number (14180320).

Almost surely, 2^111885121 is an apocalyptic number.

It is an amenable number.

111885121 is a deficient number, since it is larger than the sum of its proper divisors (1557439).

111885121 is a wasteful number, since it uses less digits than its factorization.

111885121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4935.

The product of its digits is 640, while the sum is 28.

The square root of 111885121 is about 10577.5763291975. The cubic root of 111885121 is about 481.8635900665.

The spelling of 111885121 in words is "one hundred eleven million, eight hundred eighty-five thousand, one hundred twenty-one".