2043321317 has 2 divisors, whose sum is σ = 2043321318. Its totient is φ = 2043321316.

The previous prime is 2043321299. The next prime is 2043321367. The reversal of 2043321317 is 7131233402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1638144676 + 405176641 = 40474^2 + 20129^2 .

It is a cyclic number.

It is not a de Polignac number, because 2043321317 - 2⁶ = 2043321253 is a prime.

It is a super-2 number, since 2×2043321317² = 8350324009013228978, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2043321367) 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, 1021660658 + 1021660659.

It is an arithmetic number, because the mean of its divisors is an integer number (1021660659).

Almost surely, 2^2043321317 is an apocalyptic number.

It is an amenable number.

2043321317 is a deficient number, since it is larger than the sum of its proper divisors (1).

2043321317 is an equidigital number, since it uses as much as digits as its factorization.

2043321317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 2043321317 is about 45203.1118066002. Note that the first 3 decimals coincide. The cubic root of 2043321317 is about 1268.9530539239.

Adding to 2043321317 its reverse (7131233402), we get a palindrome (9174554719).

The spelling of 2043321317 in words is "two billion, forty-three million, three hundred twenty-one thousand, three hundred seventeen".