111123132985 has 16 divisors (see below), whose sum is σ = 133784951040. Its totient is φ = 88607185920.

The previous prime is 111123132961. The next prime is 111123133019. The reversal of 111123132985 is 589231321111.

It is not a de Polignac number, because 111123132985 - 2³³ = 102533198393 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9846576 + ... + 9857854.

It is an arithmetic number, because the mean of its divisors is an integer number (8361559440).

Almost surely, 2^111123132985 is an apocalyptic number.

It is an amenable number.

111123132985 is a deficient number, since it is larger than the sum of its proper divisors (22661818055).

111123132985 is a wasteful number, since it uses less digits than its factorization.

111123132985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17568.

The product of its digits is 12960, while the sum is 37.

The spelling of 111123132985 in words is "one hundred eleven billion, one hundred twenty-three million, one hundred thirty-two thousand, nine hundred eighty-five".