2564330123 has 2 divisors, whose sum is σ = 2564330124. Its totient is φ = 2564330122.

The previous prime is 2564330089. The next prime is 2564330129. The reversal of 2564330123 is 3210334652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2564330123 - 2²⁴ = 2547552907 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (2564330129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1282165061 + 1282165062.

It is an arithmetic number, because the mean of its divisors is an integer number (1282165062).

Almost surely, 2^2564330123 is an apocalyptic number.

2564330123 is a deficient number, since it is larger than the sum of its proper divisors (1).

2564330123 is an equidigital number, since it uses as much as digits as its factorization.

2564330123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 29.

The square root of 2564330123 is about 50639.2152684064. The cubic root of 2564330123 is about 1368.7516151910.

Adding to 2564330123 its reverse (3210334652), we get a palindrome (5774664775).

The spelling of 2564330123 in words is "two billion, five hundred sixty-four million, three hundred thirty thousand, one hundred twenty-three".