111012013 has 4 divisors (see below), whose sum is σ = 126870880. Its totient is φ = 95153148.

The previous prime is 111011987. The next prime is 111012017. The reversal of 111012013 is 310210111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 111012013 - 2²⁵ = 77457581 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 (111012017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7929423 + ... + 7929436.

It is an arithmetic number, because the mean of its divisors is an integer number (31717720).

Almost surely, 2^111012013 is an apocalyptic number.

It is an amenable number.

111012013 is a deficient number, since it is larger than the sum of its proper divisors (15858867).

111012013 is an equidigital number, since it uses as much as digits as its factorization.

111012013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15858866.

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 111012013 is about 10536.2238491786. The cubic root of 111012013 is about 480.6068900493.

Adding to 111012013 its reverse (310210111), we get a palindrome (421222124).

The spelling of 111012013 in words is "one hundred eleven million, twelve thousand, thirteen".