111122013 has 32 divisors (see below), whose sum is σ = 169223040. Its totient is φ = 64419840.

The previous prime is 111122003. The next prime is 111122041. The reversal of 111122013 is 310221111.

It is not a de Polignac number, because 111122013 - 2⁸ = 111121757 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111122013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111122003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38331 + ... + 41127.

It is an arithmetic number, because the mean of its divisors is an integer number (5288220).

Almost surely, 2^111122013 is an apocalyptic number.

It is an amenable number.

111122013 is a deficient number, since it is larger than the sum of its proper divisors (58101027).

111122013 is a wasteful number, since it uses less digits than its factorization.

111122013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2877.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 111122013 is about 10541.4426432059. The cubic root of 111122013 is about 480.7655794995.

Adding to 111122013 its reverse (310221111), we get a palindrome (421343124).

The spelling of 111122013 in words is "one hundred eleven million, one hundred twenty-two thousand, thirteen".