23423189429 has 2 divisors, whose sum is σ = 23423189430. Its totient is φ = 23423189428.

The previous prime is 23423189393. The next prime is 23423189459. The reversal of 23423189429 is 92498132432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17716142404 + 5707047025 = 133102^2 + 75545^2 .

It is a cyclic number.

It is not a de Polignac number, because 23423189429 - 2¹² = 23423185333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23423189459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11711594714 + 11711594715.

It is an arithmetic number, because the mean of its divisors is an integer number (11711594715).

Almost surely, 2^23423189429 is an apocalyptic number.

It is an amenable number.

23423189429 is a deficient number, since it is larger than the sum of its proper divisors (1).

23423189429 is an equidigital number, since it uses as much as digits as its factorization.

23423189429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 746496, while the sum is 47.

The spelling of 23423189429 in words is "twenty-three billion, four hundred twenty-three million, one hundred eighty-nine thousand, four hundred twenty-nine".