566321023 has 2 divisors, whose sum is σ = 566321024. Its totient is φ = 566321022.

The previous prime is 566320967. The next prime is 566321027. The reversal of 566321023 is 320123665.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 566321023 - 2⁹ = 566320511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 566320982 and 566321000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (566321027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 283160511 + 283160512.

It is an arithmetic number, because the mean of its divisors is an integer number (283160512).

Almost surely, 2^566321023 is an apocalyptic number.

566321023 is a deficient number, since it is larger than the sum of its proper divisors (1).

566321023 is an equidigital number, since it uses as much as digits as its factorization.

566321023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 566321023 is about 23797.5003519277. The cubic root of 566321023 is about 827.3467424576.

Adding to 566321023 its reverse (320123665), we get a palindrome (886444688).

The spelling of 566321023 in words is "five hundred sixty-six million, three hundred twenty-one thousand, twenty-three".