2003020011 has 12 divisors (see below), whose sum is σ = 2894085792. Its totient is φ = 1334961456.

The previous prime is 2003020003. The next prime is 2003020013. The reversal of 2003020011 is 1100203002.

It is a happy number.

It is not a de Polignac number, because 2003020011 - 2³ = 2003020003 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 2003019975 and 2003020002.

It is not an unprimeable number, because it can be changed into a prime (2003020013) 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 in 11 ways as a sum of consecutive naturals, for example, 2830 + ... + 63356.

It is an arithmetic number, because the mean of its divisors is an integer number (241173816).

Almost surely, 2^2003020011 is an apocalyptic number.

2003020011 is a deficient number, since it is larger than the sum of its proper divisors (891065781).

2003020011 is a wasteful number, since it uses less digits than its factorization.

2003020011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64210 (or 64207 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 2003020011 is about 44755.1115628148. Note that the first 3 decimals coincide. The cubic root of 2003020011 is about 1260.5548935377.

Adding to 2003020011 its reverse (1100203002), we get a palindrome (3103223013).

The spelling of 2003020011 in words is "two billion, three million, twenty thousand, eleven".