18594131323 has 2 divisors, whose sum is σ = 18594131324. Its totient is φ = 18594131322.

The previous prime is 18594131317. The next prime is 18594131389. The reversal of 18594131323 is 32313149581.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18594131323 - 2¹³ = 18594123131 is a prime.

It is not a weakly prime, because it can be changed into another prime (18594134323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9297065661 + 9297065662.

It is an arithmetic number, because the mean of its divisors is an integer number (9297065662).

Almost surely, 2^18594131323 is an apocalyptic number.

18594131323 is a deficient number, since it is larger than the sum of its proper divisors (1).

18594131323 is an equidigital number, since it uses as much as digits as its factorization.

18594131323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 40.

The spelling of 18594131323 in words is "eighteen billion, five hundred ninety-four million, one hundred thirty-one thousand, three hundred twenty-three".