2001003011 has 16 divisors (see below), whose sum is σ = 2342089728. Its totient is φ = 1674204000.

The previous prime is 2001003007. The next prime is 2001003019. The reversal of 2001003011 is 1103001002.

It is not a de Polignac number, because 2001003011 - 2² = 2001003007 is a prime.

It is a super-2 number, since 2×2001003011² = 8008026100062132242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2001003011.

It is not an unprimeable number, because it can be changed into a prime (2001003019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30266 + ... + 70128.

It is an arithmetic number, because the mean of its divisors is an integer number (146380608).

Almost surely, 2^2001003011 is an apocalyptic number.

2001003011 is a deficient number, since it is larger than the sum of its proper divisors (341086717).

2001003011 is a wasteful number, since it uses less digits than its factorization.

2001003011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40042.

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 2001003011 is about 44732.5721482680. The cubic root of 2001003011 is about 1260.1316338078.

Adding to 2001003011 its reverse (1103001002), we get a palindrome (3104004013).

The spelling of 2001003011 in words is "two billion, one million, three thousand, eleven".