111320013 has 48 divisors (see below), whose sum is σ = 180003264. Its totient is φ = 60963840.

The previous prime is 111319997. The next prime is 111320047. The reversal of 111320013 is 310023111.

It is not a de Polignac number, because 111320013 - 2⁴ = 111319997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111320093) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 527478 + ... + 527688.

It is an arithmetic number, because the mean of its divisors is an integer number (3750068).

Almost surely, 2^111320013 is an apocalyptic number.

It is an amenable number.

111320013 is a deficient number, since it is larger than the sum of its proper divisors (68683251).

111320013 is a wasteful number, since it uses less digits than its factorization.

111320013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362 (or 355 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 111320013 is about 10550.8299673533. The cubic root of 111320013 is about 481.0509568063.

Adding to 111320013 its reverse (310023111), we get a palindrome (421343124).

The spelling of 111320013 in words is "one hundred eleven million, three hundred twenty thousand, thirteen".