2103331321 has 12 divisors (see below), whose sum is σ = 2634943332. Its totient is φ = 1664173728.

The previous prime is 2103331291. The next prime is 2103331327. The reversal of 2103331321 is 1231333012.

It can be written as a sum of positive squares in 2 ways, for example, as 1002418921 + 1100912400 = 31661^2 + 33180^2 .

It is not a de Polignac number, because 2103331321 - 2¹¹ = 2103329273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2103331327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1650330 + ... + 1651603.

It is an arithmetic number, because the mean of its divisors is an integer number (219578611).

Almost surely, 2^2103331321 is an apocalyptic number.

It is an amenable number.

2103331321 is a deficient number, since it is larger than the sum of its proper divisors (531612011).

2103331321 is a wasteful number, since it uses less digits than its factorization.

2103331321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3301960 (or 3301953 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 2103331321 is about 45862.0902380168. The cubic root of 2103331321 is about 1281.2559533144.

Adding to 2103331321 its reverse (1231333012), we get a palindrome (3334664333).

The spelling of 2103331321 in words is "two billion, one hundred three million, three hundred thirty-one thousand, three hundred twenty-one".