123310133203217 has 2 divisors, whose sum is σ = 123310133203218. Its totient is φ = 123310133203216.

The previous prime is 123310133203181. The next prime is 123310133203249. The reversal of 123310133203217 is 712302331013321.

It is an a-pointer prime, because the next prime (123310133203249) can be obtained adding 123310133203217 to its sum of digits (32).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119696925290881 + 3613207912336 = 10940609^2 + 1900844^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123310133203217 is a prime.

It is not a weakly prime, because it can be changed into another prime (123310133203717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61655066601608 + 61655066601609.

It is an arithmetic number, because the mean of its divisors is an integer number (61655066601609).

Almost surely, 2^{123310133203217} is an apocalyptic number.

It is an amenable number.

123310133203217 is a deficient number, since it is larger than the sum of its proper divisors (1).

123310133203217 is an equidigital number, since it uses as much as digits as its factorization.

123310133203217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 32.

Adding to 123310133203217 its reverse (712302331013321), we get a palindrome (835612464216538).

The spelling of 123310133203217 in words is "one hundred twenty-three trillion, three hundred ten billion, one hundred thirty-three million, two hundred three thousand, two hundred seventeen".