2103321013 has 4 divisors (see below), whose sum is σ = 2103586720. Its totient is φ = 2103055308.

The previous prime is 2103321001. The next prime is 2103321023. The reversal of 2103321013 is 3101233012.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2103321013 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 (2103321023) 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, 120603 + ... + 136936.

It is an arithmetic number, because the mean of its divisors is an integer number (525896680).

Almost surely, 2^2103321013 is an apocalyptic number.

It is an amenable number.

2103321013 is a deficient number, since it is larger than the sum of its proper divisors (265707).

2103321013 is an equidigital number, since it uses as much as digits as its factorization.

2103321013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265706.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 2103321013 is about 45861.9778574802. The cubic root of 2103321013 is about 1281.2538602525.

Adding to 2103321013 its reverse (3101233012), we get a palindrome (5204554025).

The spelling of 2103321013 in words is "two billion, one hundred three million, three hundred twenty-one thousand, thirteen".