12135023 has 2 divisors, whose sum is σ = 12135024. Its totient is φ = 12135022.

The previous prime is 12135017. The next prime is 12135031. The reversal of 12135023 is 32053121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12135023 - 2¹⁶ = 12069487 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12134992 and 12135010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12137023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6067511 + 6067512.

It is an arithmetic number, because the mean of its divisors is an integer number (6067512).

Almost surely, 2^12135023 is an apocalyptic number.

12135023 is a deficient number, since it is larger than the sum of its proper divisors (1).

12135023 is an equidigital number, since it uses as much as digits as its factorization.

12135023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 12135023 is about 3483.5359909150. The cubic root of 12135023 is about 229.7983298381.

Adding to 12135023 its reverse (32053121), we get a palindrome (44188144).

The spelling of 12135023 in words is "twelve million, one hundred thirty-five thousand, twenty-three".