2543359321 has 2 divisors, whose sum is σ = 2543359322. Its totient is φ = 2543359320.

The previous prime is 2543359309. The next prime is 2543359331. The reversal of 2543359321 is 1239533452.

2543359321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2456590096 + 86769225 = 49564^2 + 9315^2 .

It is a cyclic number.

It is not a de Polignac number, because 2543359321 - 2⁹ = 2543358809 is a prime.

It is not a weakly prime, because it can be changed into another prime (2543359331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1271679660 + 1271679661.

It is an arithmetic number, because the mean of its divisors is an integer number (1271679661).

Almost surely, 2^2543359321 is an apocalyptic number.

It is an amenable number.

2543359321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2543359321 is an equidigital number, since it uses as much as digits as its factorization.

2543359321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 97200, while the sum is 37.

The square root of 2543359321 is about 50431.7293080457. The cubic root of 2543359321 is about 1365.0102323608.

The spelling of 2543359321 in words is "two billion, five hundred forty-three million, three hundred fifty-nine thousand, three hundred twenty-one".