111113130112 has 16 divisors (see below), whose sum is σ = 221358189150. Its totient is φ = 55556564992.

The previous prime is 111113130071. The next prime is 111113130133. The reversal of 111113130112 is 211031311111.

It can be written as a sum of positive squares in only one way, i.e., 76030341696 + 35082788416 = 275736^2 + 187304^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×111113130112² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434035537 + ... + 434035792.

Almost surely, 2^111113130112 is an apocalyptic number.

It is an amenable number.

111113130112 is a deficient number, since it is larger than the sum of its proper divisors (110245059038).

111113130112 is an frugal number, since it uses more digits than its factorization.

111113130112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868071343 (or 868071331 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 16.

Adding to 111113130112 its reverse (211031311111), we get a palindrome (322144441223).

The spelling of 111113130112 in words is "one hundred eleven billion, one hundred thirteen million, one hundred thirty thousand, one hundred twelve".