1000001011 has 2 divisors, whose sum is σ = 1000001012. Its totient is φ = 1000001010.

The previous prime is 1000000993. The next prime is 1000001021. The reversal of 1000001011 is 1101000001.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1000001011 is a prime.

It is not a weakly prime, because it can be changed into another prime (1000001021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500000505 + 500000506.

It is an arithmetic number, because the mean of its divisors is an integer number (500000506).

Almost surely, 2^1000001011 is an apocalyptic number.

1000001011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000001011 is an equidigital number, since it uses as much as digits as its factorization.

1000001011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1, while the sum is 4.

The square root of 1000001011 is about 31622.7925869933. The cubic root of 1000001011 is about 1000.0003369999. Note that the first 3 decimals are identical.

Adding to 1000001011 its reverse (1101000001), we get a palindrome (2101001012).

The spelling of 1000001011 in words is "one billion, one thousand, eleven".