2305323421 has 2 divisors, whose sum is σ = 2305323422. Its totient is φ = 2305323420.

The previous prime is 2305323389. The next prime is 2305323451. The reversal of 2305323421 is 1243235032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2264427396 + 40896025 = 47586^2 + 6395^2 .

It is a cyclic number.

It is not a de Polignac number, because 2305323421 - 2⁵ = 2305323389 is a prime.

It is a super-2 number, since 2×2305323421² = 10629032150822286482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2305323451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1152661710 + 1152661711.

It is an arithmetic number, because the mean of its divisors is an integer number (1152661711).

Almost surely, 2^2305323421 is an apocalyptic number.

It is an amenable number.

2305323421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2305323421 is an equidigital number, since it uses as much as digits as its factorization.

2305323421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 2305323421 is about 48013.7836563627. The cubic root of 2305323421 is about 1321.0237354055.

Adding to 2305323421 its reverse (1243235032), we get a palindrome (3548558453).

The spelling of 2305323421 in words is "two billion, three hundred five million, three hundred twenty-three thousand, four hundred twenty-one".