9018238423 has 2 divisors, whose sum is σ = 9018238424. Its totient is φ = 9018238422.

The previous prime is 9018238409. The next prime is 9018238433. The reversal of 9018238423 is 3248328109.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9018238423 - 2¹³ = 9018230231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9018238433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4509119211 + 4509119212.

It is an arithmetic number, because the mean of its divisors is an integer number (4509119212).

Almost surely, 2^9018238423 is an apocalyptic number.

9018238423 is a deficient number, since it is larger than the sum of its proper divisors (1).

9018238423 is an equidigital number, since it uses as much as digits as its factorization.

9018238423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 9018238423 is about 94964.4060845957. The cubic root of 9018238423 is about 2081.4879656747.

The spelling of 9018238423 in words is "nine billion, eighteen million, two hundred thirty-eight thousand, four hundred twenty-three".