111123198162 has 32 divisors (see below), whose sum is σ = 247101917760. Its totient is φ = 37016844480.

The previous prime is 111123198161. The next prime is 111123198167. The reversal of 111123198162 is 261891321111.

It is a super-2 number, since 2×111123198162² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111123198161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 589383 + ... + 754730.

It is an arithmetic number, because the mean of its divisors is an integer number (7721934930).

Almost surely, 2^111123198162 is an apocalyptic number.

111123198162 is an abundant number, since it is smaller than the sum of its proper divisors (135978719598).

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

111123198162 is a wasteful number, since it uses less digits than its factorization.

111123198162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1345655 (or 1345649 counting only the distinct ones).

The product of its digits is 5184, while the sum is 36.

The spelling of 111123198162 in words is "one hundred eleven billion, one hundred twenty-three million, one hundred ninety-eight thousand, one hundred sixty-two".