2003011 has 2 divisors, whose sum is σ = 2003012. Its totient is φ = 2003010.

The previous prime is 2003009. The next prime is 2003021. The reversal of 2003011 is 1103002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2003011 - 2¹ = 2003009 is a prime.

It is a super-2 number, since 2×2003011² = 8024106132242, which contains 22 as substring.

Together with 2003009, it forms a pair of twin primes.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2002985 and 2003003.

It is not a weakly prime, because it can be changed into another prime (2003021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001505 + 1001506.

It is an arithmetic number, because the mean of its divisors is an integer number (1001506).

2^2003011 is an apocalyptic number.

2003011 is a deficient number, since it is larger than the sum of its proper divisors (1).

2003011 is an equidigital number, since it uses as much as digits as its factorization.

2003011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6, while the sum is 7.

The square root of 2003011 is about 1415.2777112638. The cubic root of 2003011 is about 126.0553003246.

Adding to 2003011 its reverse (1103002), we get a palindrome (3106013).

Subtracting from 2003011 its reverse (1103002), we obtain a palindrome (900009).

The spelling of 2003011 in words is "two million, three thousand, eleven".