23454143329 has 2 divisors, whose sum is σ = 23454143330. Its totient is φ = 23454143328.

The previous prime is 23454143291. The next prime is 23454143351. The reversal of 23454143329 is 92334145432.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18136816929 + 5317326400 = 134673^2 + 72920^2 .

It is a cyclic number.

It is not a de Polignac number, because 23454143329 - 2¹³ = 23454135137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23454143291 and 23454143300.

It is not a weakly prime, because it can be changed into another prime (23454113329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11727071664 + 11727071665.

It is an arithmetic number, because the mean of its divisors is an integer number (11727071665).

Almost surely, 2^23454143329 is an apocalyptic number.

It is an amenable number.

23454143329 is a deficient number, since it is larger than the sum of its proper divisors (1).

23454143329 is an equidigital number, since it uses as much as digits as its factorization.

23454143329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040, while the sum is 40.

The spelling of 23454143329 in words is "twenty-three billion, four hundred fifty-four million, one hundred forty-three thousand, three hundred twenty-nine".