23203210321217 has 2 divisors, whose sum is σ = 23203210321218. Its totient is φ = 23203210321216.

The previous prime is 23203210321183. The next prime is 23203210321261. The reversal of 23203210321217 is 71212301230232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22738630398016 + 464579923201 = 4768504^2 + 681601^2 .

It is a cyclic number.

It is not a de Polignac number, because 23203210321217 - 2¹⁶ = 23203210255681 is a prime.

It is a super-2 number, since 2×23203210321217² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23203210321217.

It is not a weakly prime, because it can be changed into another prime (23203210326217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11601605160608 + 11601605160609.

It is an arithmetic number, because the mean of its divisors is an integer number (11601605160609).

Almost surely, 2^{23203210321217} is an apocalyptic number.

It is an amenable number.

23203210321217 is a deficient number, since it is larger than the sum of its proper divisors (1).

23203210321217 is an equidigital number, since it uses as much as digits as its factorization.

23203210321217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 29.

Adding to 23203210321217 its reverse (71212301230232), we get a palindrome (94415511551449).

The spelling of 23203210321217 in words is "twenty-three trillion, two hundred three billion, two hundred ten million, three hundred twenty-one thousand, two hundred seventeen".