2003311073 has 2 divisors, whose sum is σ = 2003311074. Its totient is φ = 2003311072.

The previous prime is 2003311067. The next prime is 2003311087. The reversal of 2003311073 is 3701133002.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1905933649 + 97377424 = 43657^2 + 9868^2 .

It is a cyclic number.

It is not a de Polignac number, because 2003311073 - 2¹⁶ = 2003245537 is a prime.

It is a super-2 number, since 2×2003311073² = 8026510510408822658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2003311003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001655536 + 1001655537.

It is an arithmetic number, because the mean of its divisors is an integer number (1001655537).

Almost surely, 2^2003311073 is an apocalyptic number.

It is an amenable number.

2003311073 is a deficient number, since it is larger than the sum of its proper divisors (1).

2003311073 is an equidigital number, since it uses as much as digits as its factorization.

2003311073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378, while the sum is 20.

The square root of 2003311073 is about 44758.3631626537. The cubic root of 2003311073 is about 1260.6159483210.

Adding to 2003311073 its reverse (3701133002), we get a palindrome (5704444075).

The spelling of 2003311073 in words is "two billion, three million, three hundred eleven thousand, seventy-three".