111112611145 has 32 divisors (see below), whose sum is σ = 136642671360. Its totient is φ = 86718213120.

The previous prime is 111112611119. The next prime is 111112611193. The reversal of 111112611145 is 541116211111.

It is a de Polignac number, because none of the positive numbers 2^k-111112611145 is a prime.

It is a super-2 number, since 2×111112611145² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12875322 + ... + 12883948.

It is an arithmetic number, because the mean of its divisors is an integer number (4270083480).

Almost surely, 2^111112611145 is an apocalyptic number.

It is an amenable number.

111112611145 is a deficient number, since it is larger than the sum of its proper divisors (25530060215).

111112611145 is a wasteful number, since it uses less digits than its factorization.

111112611145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9105.

The product of its digits is 240, while the sum is 25.

Adding to 111112611145 its reverse (541116211111), we get a palindrome (652228822256).

The spelling of 111112611145 in words is "one hundred eleven billion, one hundred twelve million, six hundred eleven thousand, one hundred forty-five".