23403449999 has 2 divisors, whose sum is σ = 23403450000. Its totient is φ = 23403449998.

The previous prime is 23403449981. The next prime is 23403450017. The reversal of 23403449999 is 99994430432.

It is a balanced prime because it is at equal distance from previous prime (23403449981) and next prime (23403450017).

It is a cyclic number.

It is not a de Polignac number, because 23403449999 - 2⁸ = 23403449743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23403449929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11701724999 + 11701725000.

It is an arithmetic number, because the mean of its divisors is an integer number (11701725000).

Almost surely, 2^23403449999 is an apocalyptic number.

23403449999 is a deficient number, since it is larger than the sum of its proper divisors (1).

23403449999 is an equidigital number, since it uses as much as digits as its factorization.

23403449999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7558272, while the sum is 56.

The spelling of 23403449999 in words is "twenty-three billion, four hundred three million, four hundred forty-nine thousand, nine hundred ninety-nine".