518361023 has 2 divisors, whose sum is σ = 518361024. Its totient is φ = 518361022.

The previous prime is 518361007. The next prime is 518361061. The reversal of 518361023 is 320163815.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 518361023 - 2⁴ = 518361007 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (518360023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 259180511 + 259180512.

It is an arithmetic number, because the mean of its divisors is an integer number (259180512).

Almost surely, 2^518361023 is an apocalyptic number.

518361023 is a deficient number, since it is larger than the sum of its proper divisors (1).

518361023 is an equidigital number, since it uses as much as digits as its factorization.

518361023 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 29.

The square root of 518361023 is about 22767.5431920091. The cubic root of 518361023 is about 803.2994065013.

The spelling of 518361023 in words is "five hundred eighteen million, three hundred sixty-one thousand, twenty-three".