23435819899 has 2 divisors, whose sum is σ = 23435819900. Its totient is φ = 23435819898.

The previous prime is 23435819887. The next prime is 23435819903. The reversal of 23435819899 is 99891853432.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23435819899 - 2⁵ = 23435819867 is a prime.

It is not a weakly prime, because it can be changed into another prime (23435819839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11717909949 + 11717909950.

It is an arithmetic number, because the mean of its divisors is an integer number (11717909950).

Almost surely, 2^23435819899 is an apocalyptic number.

23435819899 is a deficient number, since it is larger than the sum of its proper divisors (1).

23435819899 is an equidigital number, since it uses as much as digits as its factorization.

23435819899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16796160, while the sum is 61.

The spelling of 23435819899 in words is "twenty-three billion, four hundred thirty-five million, eight hundred nineteen thousand, eight hundred ninety-nine".