23112112312109 has 2 divisors, whose sum is σ = 23112112312110. Its totient is φ = 23112112312108.

The previous prime is 23112112312057. The next prime is 23112112312141. The reversal of 23112112312109 is 90121321121132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23092686085225 + 19426226884 = 4805485^2 + 139378^2 .

It is a cyclic number.

It is not a de Polignac number, because 23112112312109 - 2⁸ = 23112112311853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23112112312169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11556056156054 + 11556056156055.

It is an arithmetic number, because the mean of its divisors is an integer number (11556056156055).

Almost surely, 2^{23112112312109} is an apocalyptic number.

It is an amenable number.

23112112312109 is a deficient number, since it is larger than the sum of its proper divisors (1).

23112112312109 is an equidigital number, since it uses as much as digits as its factorization.

23112112312109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 29.

The spelling of 23112112312109 in words is "twenty-three trillion, one hundred twelve billion, one hundred twelve million, three hundred twelve thousand, one hundred nine".