2011321013 has 32 divisors (see below), whose sum is σ = 2335011840. Its totient is φ = 1718277120.

The previous prime is 2011321003. The next prime is 2011321027. The reversal of 2011321013 is 3101231102.

It is a cyclic number.

It is not a de Polignac number, because 2011321013 - 2²⁰ = 2010272437 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011321003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1319870 + ... + 1321392.

It is an arithmetic number, because the mean of its divisors is an integer number (72969120).

Almost surely, 2^2011321013 is an apocalyptic number.

It is an amenable number.

2011321013 is a deficient number, since it is larger than the sum of its proper divisors (323690827).

2011321013 is a wasteful number, since it uses less digits than its factorization.

2011321013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1709.

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

The square root of 2011321013 is about 44847.7537118639. The cubic root of 2011321013 is about 1262.2938422060.

Adding to 2011321013 its reverse (3101231102), we get a palindrome (5112552115).

The spelling of 2011321013 in words is "two billion, eleven million, three hundred twenty-one thousand, thirteen".