12918023 has 2 divisors, whose sum is σ = 12918024. Its totient is φ = 12918022.

The previous prime is 12918013. The next prime is 12918029. The reversal of 12918023 is 32081921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12918023 - 2⁶ = 12917959 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12917983 and 12918001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12918029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6459011 + 6459012.

It is an arithmetic number, because the mean of its divisors is an integer number (6459012).

Almost surely, 2^12918023 is an apocalyptic number.

12918023 is a deficient number, since it is larger than the sum of its proper divisors (1).

12918023 is an equidigital number, since it uses as much as digits as its factorization.

12918023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 12918023 is about 3594.1651325447. The cubic root of 12918023 is about 234.6381817056.

Adding to 12918023 its reverse (32081921), we get a palindrome (44999944).

The spelling of 12918023 in words is "twelve million, nine hundred eighteen thousand, twenty-three".