2013111013 has 4 divisors (see below), whose sum is σ = 2013203808. Its totient is φ = 2013018220.

The previous prime is 2013110993. The next prime is 2013111043. The reversal of 2013111013 is 3101113102.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3101113102 = 2 ⋅1550556551.

It is a cyclic number.

It is not a de Polignac number, because 2013111013 - 2²⁵ = 1979556581 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2013110984 and 2013111002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2013111043) 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, 5478 + ... + 63688.

It is an arithmetic number, because the mean of its divisors is an integer number (503300952).

Almost surely, 2^2013111013 is an apocalyptic number.

It is an amenable number.

2013111013 is a deficient number, since it is larger than the sum of its proper divisors (92795).

2013111013 is an equidigital number, since it uses as much as digits as its factorization.

2013111013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92794.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 2013111013 is about 44867.7056801437. The cubic root of 2013111013 is about 1262.6681958443.

Adding to 2013111013 its reverse (3101113102), we get a palindrome (5114224115).

The spelling of 2013111013 in words is "two billion, thirteen million, one hundred eleven thousand, thirteen".