111312130 has 32 divisors (see below), whose sum is σ = 207785088. Its totient is φ = 42902400.

The previous prime is 111312109. The next prime is 111312133. The reversal of 111312130 is 31213111.

It is a self number, because there is not a number n which added to its sum of digits gives 111312130.

It is not an unprimeable number, because it can be changed into a prime (111312133) 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, 32395 + ... + 35665.

It is an arithmetic number, because the mean of its divisors is an integer number (6493284).

Almost surely, 2^111312130 is an apocalyptic number.

111312130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111312130 is a deficient number, since it is larger than the sum of its proper divisors (96472958).

111312130 is a wasteful number, since it uses less digits than its factorization.

111312130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3402.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 111312130 is about 10550.4563882327. The cubic root of 111312130 is about 481.0396015129.

Adding to 111312130 its reverse (31213111), we get a palindrome (142525241).

The spelling of 111312130 in words is "one hundred eleven million, three hundred twelve thousand, one hundred thirty".