12311023 has 2 divisors, whose sum is σ = 12311024. Its totient is φ = 12311022.

The previous prime is 12311017. The next prime is 12311027. The reversal of 12311023 is 32011321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12311023 - 2⁹ = 12310511 is a prime.

It is a super-2 number, since 2×12311023² = 303122574613058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12310994 and 12311012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12311027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6155511 + 6155512.

It is an arithmetic number, because the mean of its divisors is an integer number (6155512).

Almost surely, 2^12311023 is an apocalyptic number.

12311023 is a deficient number, since it is larger than the sum of its proper divisors (1).

12311023 is an equidigital number, since it uses as much as digits as its factorization.

12311023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 12311023 is about 3508.7067418067. The cubic root of 12311023 is about 230.9039598762.

Adding to 12311023 its reverse (32011321), we get a palindrome (44322344).

The spelling of 12311023 in words is "twelve million, three hundred eleven thousand, twenty-three".