2320120013 has 4 divisors (see below), whose sum is σ = 2376708348. Its totient is φ = 2263531680.

The previous prime is 2320119959. The next prime is 2320120027. The reversal of 2320120013 is 3100210232.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 833015044 + 1487104969 = 28862^2 + 38563^2 .

It is a cyclic number.

It is not a de Polignac number, because 2320120013 - 2⁸ = 2320119757 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2320120013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2320120093) 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, 28294106 + ... + 28294187.

It is an arithmetic number, because the mean of its divisors is an integer number (594177087).

Almost surely, 2^2320120013 is an apocalyptic number.

It is an amenable number.

2320120013 is a deficient number, since it is larger than the sum of its proper divisors (56588335).

2320120013 is an equidigital number, since it uses as much as digits as its factorization.

2320120013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56588334.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2320120013 is about 48167.6241162049. The cubic root of 2320120013 is about 1323.8440161876.

Adding to 2320120013 its reverse (3100210232), we get a palindrome (5420330245).

The spelling of 2320120013 in words is "two billion, three hundred twenty million, one hundred twenty thousand, thirteen".