202100243017 has 2 divisors, whose sum is σ = 202100243018. Its totient is φ = 202100243016.

The previous prime is 202100242997. The next prime is 202100243039. The reversal of 202100243017 is 710342001202.

It is an a-pointer prime, because the next prime (202100243039) can be obtained adding 202100243017 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 202085312521 + 14930496 = 449539^2 + 3864^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202100243017 is a prime.

It is not a weakly prime, because it can be changed into another prime (202100243617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101050121508 + 101050121509.

It is an arithmetic number, because the mean of its divisors is an integer number (101050121509).

Almost surely, 2^202100243017 is an apocalyptic number.

It is an amenable number.

202100243017 is a deficient number, since it is larger than the sum of its proper divisors (1).

202100243017 is an equidigital number, since it uses as much as digits as its factorization.

202100243017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 22.

Adding to 202100243017 its reverse (710342001202), we get a palindrome (912442244219).

The spelling of 202100243017 in words is "two hundred two billion, one hundred million, two hundred forty-three thousand, seventeen".