2102303302321 has 4 divisors (see below), whose sum is σ = 2102579819632. Its totient is φ = 2102026785012.

The previous prime is 2102303302289. The next prime is 2102303302331. The reversal of 2102303302321 is 1232033032012.

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 not a de Polignac number, because 2102303302321 - 2⁵ = 2102303302289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2102303302292 and 2102303302301.

It is not an unprimeable number, because it can be changed into a prime (2102303302331) 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, 138247251 + ... + 138262456.

It is an arithmetic number, because the mean of its divisors is an integer number (525644954908).

Almost surely, 2^{2102303302321} is an apocalyptic number.

It is an amenable number.

2102303302321 is a deficient number, since it is larger than the sum of its proper divisors (276517311).

2102303302321 is an equidigital number, since it uses as much as digits as its factorization.

2102303302321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276517310.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 2102303302321 its reverse (1232033032012), we get a palindrome (3334336334333).

The spelling of 2102303302321 in words is "two trillion, one hundred two billion, three hundred three million, three hundred two thousand, three hundred twenty-one".