202312031017 has 2 divisors, whose sum is σ = 202312031018. Its totient is φ = 202312031016.

The previous prime is 202312030993. The next prime is 202312031023. The reversal of 202312031017 is 710130213202.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 182247025216 + 20065005801 = 426904^2 + 141651^2 .

It is a cyclic number.

It is not a de Polignac number, because 202312031017 - 2⁷ = 202312030889 is a prime.

It is not a weakly prime, because it can be changed into another prime (202312011017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101156015508 + 101156015509.

It is an arithmetic number, because the mean of its divisors is an integer number (101156015509).

Almost surely, 2^202312031017 is an apocalyptic number.

It is an amenable number.

202312031017 is a deficient number, since it is larger than the sum of its proper divisors (1).

202312031017 is an equidigital number, since it uses as much as digits as its factorization.

202312031017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 22.

Adding to 202312031017 its reverse (710130213202), we get a palindrome (912442244219).

The spelling of 202312031017 in words is "two hundred two billion, three hundred twelve million, thirty-one thousand, seventeen".