20030011 has 2 divisors, whose sum is σ = 20030012. Its totient is φ = 20030010.

The previous prime is 20029993. The next prime is 20030027. The reversal of 20030011 is 11003002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20030011 - 2¹⁷ = 19898939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20029976 and 20030003.

It is not a weakly prime, because it can be changed into another prime (20030071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10015005 + 10015006.

It is an arithmetic number, because the mean of its divisors is an integer number (10015006).

Almost surely, 2^20030011 is an apocalyptic number.

20030011 is the 2002-nd centered decagonal number.

20030011 is a deficient number, since it is larger than the sum of its proper divisors (1).

20030011 is an equidigital number, since it uses as much as digits as its factorization.

20030011 is an evil number, because the sum of its binary digits is even.

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

The square root of 20030011 is about 4475.4900290359. The cubic root of 20030011 is about 271.5774644510.

Adding to 20030011 its reverse (11003002), we get a palindrome (31033013).

It can be divided in two parts, 2003001 and 1, that added together give a palindrome (2003002).

The spelling of 20030011 in words is "twenty million, thirty thousand, eleven".