2003213223217 has 2 divisors, whose sum is σ = 2003213223218. Its totient is φ = 2003213223216.

The previous prime is 2003213223197. The next prime is 2003213223281. The reversal of 2003213223217 is 7123223123002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1931088212496 + 72125010721 = 1389636^2 + 268561^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2003213223217 is a prime.

It is not a weakly prime, because it can be changed into another prime (2004213223217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001606611608 + 1001606611609.

It is an arithmetic number, because the mean of its divisors is an integer number (1001606611609).

Almost surely, 2^{2003213223217} is an apocalyptic number.

It is an amenable number.

2003213223217 is a deficient number, since it is larger than the sum of its proper divisors (1).

2003213223217 is an equidigital number, since it uses as much as digits as its factorization.

2003213223217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 28.

Adding to 2003213223217 its reverse (7123223123002), we get a palindrome (9126436346219).

The spelling of 2003213223217 in words is "two trillion, three billion, two hundred thirteen million, two hundred twenty-three thousand, two hundred seventeen".