2001002011 has 2 divisors, whose sum is σ = 2001002012. Its totient is φ = 2001002010.

The previous prime is 2001001997. The next prime is 2001002057. The reversal of 2001002011 is 1102001002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2001002011 - 2⁵ = 2001001979 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2001001985 and 2001002003.

It is not a weakly prime, because it can be changed into another prime (2001002611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000501005 + 1000501006.

It is an arithmetic number, because the mean of its divisors is an integer number (1000501006).

Almost surely, 2^2001002011 is an apocalyptic number.

2001002011 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001002011 is an equidigital number, since it uses as much as digits as its factorization.

2001002011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 2001002011 is about 44732.5609707291. The cubic root of 2001002011 is about 1260.1314238911.

Adding to 2001002011 its reverse (1102001002), we get a palindrome (3103003013).

The spelling of 2001002011 in words is "two billion, one million, two thousand, eleven".