9001001011 has 2 divisors, whose sum is σ = 9001001012. Its totient is φ = 9001001010.

The previous prime is 9001000963. The next prime is 9001001029. The reversal of 9001001011 is 1101001009.

It is a strong prime.

It is an emirp because it is prime and its reverse (1101001009) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9001001011 - 2¹⁷ = 9000869939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9001000982 and 9001001000.

It is not a weakly prime, because it can be changed into another prime (9001004011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4500500505 + 4500500506.

It is an arithmetic number, because the mean of its divisors is an integer number (4500500506).

Almost surely, 2^9001001011 is an apocalyptic number.

9001001011 is a deficient number, since it is larger than the sum of its proper divisors (1).

9001001011 is an equidigital number, since it uses as much as digits as its factorization.

9001001011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9, while the sum is 13.

The square root of 9001001011 is about 94873.6054495664. The cubic root of 9001001011 is about 2080.1609382221.

The spelling of 9001001011 in words is "nine billion, one million, one thousand, eleven".