1000002011 has 4 divisors (see below), whose sum is σ = 1012050312. Its totient is φ = 987953712.

The previous prime is 1000001969. The next prime is 1000002043. The reversal of 1000002011 is 1102000001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1102000001 = 43 ⋅25627907.

It is a cyclic number.

It is not a de Polignac number, because 1000002011 - 2²⁶ = 932893147 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1000001986 and 1000002004.

It is not an unprimeable number, because it can be changed into a prime (1000001011) 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 3 ways as a sum of consecutive naturals, for example, 6024026 + ... + 6024191.

It is an arithmetic number, because the mean of its divisors is an integer number (253012578).

Almost surely, 2^1000002011 is an apocalyptic number.

1000002011 is a deficient number, since it is larger than the sum of its proper divisors (12048301).

1000002011 is an equidigital number, since it uses as much as digits as its factorization.

1000002011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12048300.

The product of its (nonzero) digits is 2, while the sum is 5.

The square root of 1000002011 is about 31622.8083983697. The cubic root of 1000002011 is about 1000.0006703329. Note that the first 3 decimals are identical.

Adding to 1000002011 its reverse (1102000001), we get a palindrome (2102002012).

The spelling of 1000002011 in words is "one billion, two thousand, eleven".