23503430173 has 2 divisors, whose sum is σ = 23503430174. Its totient is φ = 23503430172.

The previous prime is 23503430081. The next prime is 23503430207. The reversal of 23503430173 is 37103430532.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15482078329 + 8021351844 = 124427^2 + 89562^2 .

It is a cyclic number.

It is not a de Polignac number, because 23503430173 - 2¹⁷ = 23503299101 is a prime.

It is a super-2 number, since 2×23503430173² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23503430773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11751715086 + 11751715087.

It is an arithmetic number, because the mean of its divisors is an integer number (11751715087).

Almost surely, 2^23503430173 is an apocalyptic number.

It is an amenable number.

23503430173 is a deficient number, since it is larger than the sum of its proper divisors (1).

23503430173 is an equidigital number, since it uses as much as digits as its factorization.

23503430173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 31.

The spelling of 23503430173 in words is "twenty-three billion, five hundred three million, four hundred thirty thousand, one hundred seventy-three".