18555141323 has 2 divisors, whose sum is σ = 18555141324. Its totient is φ = 18555141322.

The previous prime is 18555141301. The next prime is 18555141331. The reversal of 18555141323 is 32314155581.

It is a strong prime.

It is an emirp because it is prime and its reverse (32314155581) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18555141323 - 2²⁸ = 18286705867 is a prime.

It is not a weakly prime, because it can be changed into another prime (18555141523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9277570661 + 9277570662.

It is an arithmetic number, because the mean of its divisors is an integer number (9277570662).

Almost surely, 2^18555141323 is an apocalyptic number.

18555141323 is a deficient number, since it is larger than the sum of its proper divisors (1).

18555141323 is an equidigital number, since it uses as much as digits as its factorization.

18555141323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72000, while the sum is 38.

The spelling of 18555141323 in words is "eighteen billion, five hundred fifty-five million, one hundred forty-one thousand, three hundred twenty-three".