12232123109 has 2 divisors, whose sum is σ = 12232123110. Its totient is φ = 12232123108.

The previous prime is 12232123019. The next prime is 12232123153. The reversal of 12232123109 is 90132123221.

Together with previous prime (12232123019) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8653092484 + 3579030625 = 93022^2 + 59825^2 .

It is a cyclic number.

It is not a de Polignac number, because 12232123109 - 2¹⁶ = 12232057573 is a prime.

It is a super-3 number, since 3×12232123109³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12232123159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6116061554 + 6116061555.

It is an arithmetic number, because the mean of its divisors is an integer number (6116061555).

Almost surely, 2^12232123109 is an apocalyptic number.

It is an amenable number.

12232123109 is a deficient number, since it is larger than the sum of its proper divisors (1).

12232123109 is an equidigital number, since it uses as much as digits as its factorization.

12232123109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 12232123109 in words is "twelve billion, two hundred thirty-two million, one hundred twenty-three thousand, one hundred nine".