2013021113 has 4 divisors (see below), whose sum is σ = 2013111168. Its totient is φ = 2012931060.

The previous prime is 2013021107. The next prime is 2013021121. The reversal of 2013021113 is 3111203102.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2013021113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2013021103) 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, 16820 + ... + 65642.

It is an arithmetic number, because the mean of its divisors is an integer number (503277792).

Almost surely, 2^2013021113 is an apocalyptic number.

It is an amenable number.

2013021113 is a deficient number, since it is larger than the sum of its proper divisors (90055).

2013021113 is an equidigital number, since it uses as much as digits as its factorization.

2013021113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90054.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 2013021113 is about 44866.7038348038. The cubic root of 2013021113 is about 1262.6493998018.

Adding to 2013021113 its reverse (3111203102), we get a palindrome (5124224215).

The spelling of 2013021113 in words is "two billion, thirteen million, twenty-one thousand, one hundred thirteen".