23235215173 has 2 divisors, whose sum is σ = 23235215174. Its totient is φ = 23235215172.

The previous prime is 23235215167. The next prime is 23235215189. The reversal of 23235215173 is 37151253232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21625761249 + 1609453924 = 147057^2 + 40118^2 .

It is a cyclic number.

It is not a de Polignac number, because 23235215173 - 2⁵ = 23235215141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23235215123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11617607586 + 11617607587.

It is an arithmetic number, because the mean of its divisors is an integer number (11617607587).

Almost surely, 2^23235215173 is an apocalyptic number.

It is an amenable number.

23235215173 is a deficient number, since it is larger than the sum of its proper divisors (1).

23235215173 is an equidigital number, since it uses as much as digits as its factorization.

23235215173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37800, while the sum is 34.

The spelling of 23235215173 in words is "twenty-three billion, two hundred thirty-five million, two hundred fifteen thousand, one hundred seventy-three".