111405111112 has 64 divisors (see below), whose sum is σ = 217195655040. Its totient is φ = 53528563200.

The previous prime is 111405111101. The next prime is 111405111131. The reversal of 111405111112 is 211111504111.

It is a super-2 number, since 2×111405111112² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111405111112.

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, 41614318 + ... + 41616994.

It is an arithmetic number, because the mean of its divisors is an integer number (3393682110).

Almost surely, 2^111405111112 is an apocalyptic number.

It is an amenable number.

111405111112 is a deficient number, since it is larger than the sum of its proper divisors (105790543928).

111405111112 is a wasteful number, since it uses less digits than its factorization.

111405111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4582 (or 4578 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 19.

Adding to 111405111112 its reverse (211111504111), we get a palindrome (322516615223).

The spelling of 111405111112 in words is "one hundred eleven billion, four hundred five million, one hundred eleven thousand, one hundred twelve".