23403450017 has 2 divisors, whose sum is σ = 23403450018. Its totient is φ = 23403450016.

The previous prime is 23403449999. The next prime is 23403450043. The reversal of 23403450017 is 71005430432.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19716653056 + 3686796961 = 140416^2 + 60719^2 .

It is a cyclic number.

It is not a de Polignac number, because 23403450017 - 2¹⁴ = 23403433633 is a prime.

It is not a weakly prime, because it can be changed into another prime (23403450067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11701725008 + 11701725009.

It is an arithmetic number, because the mean of its divisors is an integer number (11701725009).

Almost surely, 2^23403450017 is an apocalyptic number.

It is an amenable number.

23403450017 is a deficient number, since it is larger than the sum of its proper divisors (1).

23403450017 is an equidigital number, since it uses as much as digits as its factorization.

23403450017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 29.

Adding to 23403450017 its reverse (71005430432), we get a palindrome (94408880449).

The spelling of 23403450017 in words is "twenty-three billion, four hundred three million, four hundred fifty thousand, seventeen".