111121032013 has 16 divisors (see below), whose sum is σ = 112847454720. Its totient is φ = 109408921776.

The previous prime is 111121031963. The next prime is 111121032031. The reversal of 111121032013 is 310230121111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 111121032013 - 2³³ = 102531097421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111121032053) 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, 13245006 + ... + 13253392.

It is an arithmetic number, because the mean of its divisors is an integer number (7052965920).

Almost surely, 2^111121032013 is an apocalyptic number.

It is an amenable number.

111121032013 is a deficient number, since it is larger than the sum of its proper divisors (1726422707).

111121032013 is a wasteful number, since it uses less digits than its factorization.

111121032013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9216.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 111121032013 its reverse (310230121111), we get a palindrome (421351153124).

The spelling of 111121032013 in words is "one hundred eleven billion, one hundred twenty-one million, thirty-two thousand, thirteen".