111146605013 has 4 divisors (see below), whose sum is σ = 117684640620. Its totient is φ = 104608569408.

The previous prime is 111146605007. The next prime is 111146605043. The reversal of 111146605013 is 310506641111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 310506641111 = 43 ⋅7221084677.

It can be written as a sum of positive squares in 2 ways, for example, as 33471800209 + 77674804804 = 182953^2 + 278702^2 .

It is a cyclic number.

It is not a de Polignac number, because 111146605013 - 2⁴ = 111146604997 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 (111146605043) 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, 3269017778 + ... + 3269017811.

It is an arithmetic number, because the mean of its divisors is an integer number (29421160155).

Almost surely, 2^111146605013 is an apocalyptic number.

It is an amenable number.

111146605013 is a deficient number, since it is larger than the sum of its proper divisors (6538035607).

111146605013 is an equidigital number, since it uses as much as digits as its factorization.

111146605013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6538035606.

The product of its (nonzero) digits is 2160, while the sum is 29.

The spelling of 111146605013 in words is "one hundred eleven billion, one hundred forty-six million, six hundred five thousand, thirteen".