23431112389 has 2 divisors, whose sum is σ = 23431112390. Its totient is φ = 23431112388.

The previous prime is 23431112273. The next prime is 23431112443. The reversal of 23431112389 is 98321113432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17567381764 + 5863730625 = 132542^2 + 76575^2 .

It is a cyclic number.

It is not a de Polignac number, because 23431112389 - 2¹¹ = 23431110341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23431112689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11715556194 + 11715556195.

It is an arithmetic number, because the mean of its divisors is an integer number (11715556195).

Almost surely, 2^23431112389 is an apocalyptic number.

It is an amenable number.

23431112389 is a deficient number, since it is larger than the sum of its proper divisors (1).

23431112389 is an equidigital number, since it uses as much as digits as its factorization.

23431112389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 37.

The spelling of 23431112389 in words is "twenty-three billion, four hundred thirty-one million, one hundred twelve thousand, three hundred eighty-nine".