2002203257 has 2 divisors, whose sum is σ = 2002203258. Its totient is φ = 2002203256.

The previous prime is 2002203227. The next prime is 2002203317. The reversal of 2002203257 is 7523022002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1540641001 + 461562256 = 39251^2 + 21484^2 .

It is a cyclic number.

It is not a de Polignac number, because 2002203257 - 2¹⁸ = 2001941113 is a prime.

It is not a weakly prime, because it can be changed into another prime (2002203227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001101628 + 1001101629.

It is an arithmetic number, because the mean of its divisors is an integer number (1001101629).

Almost surely, 2^2002203257 is an apocalyptic number.

It is an amenable number.

2002203257 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002203257 is an equidigital number, since it uses as much as digits as its factorization.

2002203257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 2002203257 is about 44745.9859317012. The cubic root of 2002203257 is about 1260.3835350862.

Adding to 2002203257 its reverse (7523022002), we get a palindrome (9525225259).

The spelling of 2002203257 in words is "two billion, two million, two hundred three thousand, two hundred fifty-seven".