18237323723 has 2 divisors, whose sum is σ = 18237323724. Its totient is φ = 18237323722.

The previous prime is 18237323669. The next prime is 18237323743. The reversal of 18237323723 is 32732373281.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18237323723 - 2³⁰ = 17163581899 is a prime.

It is not a weakly prime, because it can be changed into another prime (18237323743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9118661861 + 9118661862.

It is an arithmetic number, because the mean of its divisors is an integer number (9118661862).

Almost surely, 2^18237323723 is an apocalyptic number.

18237323723 is a deficient number, since it is larger than the sum of its proper divisors (1).

18237323723 is an equidigital number, since it uses as much as digits as its factorization.

18237323723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 254016, while the sum is 41.

The spelling of 18237323723 in words is "eighteen billion, two hundred thirty-seven million, three hundred twenty-three thousand, seven hundred twenty-three".