2103000321 has 4 divisors (see below), whose sum is σ = 2804000432. Its totient is φ = 1402000212.

The previous prime is 2103000311. The next prime is 2103000323. The reversal of 2103000321 is 1230003012.

It is a happy number.

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 de Polignac number, because none of the positive numbers 2^k-2103000321 is a prime.

It is a super-2 number, since 2×2103000321² = 8845220700252206082, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2103000297 and 2103000306.

It is not an unprimeable number, because it can be changed into a prime (2103000323) 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, 350500051 + ... + 350500056.

It is an arithmetic number, because the mean of its divisors is an integer number (701000108).

Almost surely, 2^2103000321 is an apocalyptic number.

It is an amenable number.

2103000321 is a deficient number, since it is larger than the sum of its proper divisors (701000111).

2103000321 is an equidigital number, since it uses as much as digits as its factorization.

2103000321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701000110.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 2103000321 is about 45858.4814510904. The cubic root of 2103000321 is about 1281.1887396258.

Adding to 2103000321 its reverse (1230003012), we get a palindrome (3333003333).

The spelling of 2103000321 in words is "two billion, one hundred three million, three hundred twenty-one", and thus it is an aban number.