1009020011 has 4 divisors (see below), whose sum is σ = 1011654912. Its totient is φ = 1006385112.

The previous prime is 1009019993. The next prime is 1009020037. The reversal of 1009020011 is 1100209001.

1009020011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1009020011 - 2¹⁴ = 1009003627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1009020211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1316876 + ... + 1317641.

It is an arithmetic number, because the mean of its divisors is an integer number (252913728).

Almost surely, 2^1009020011 is an apocalyptic number.

1009020011 is a deficient number, since it is larger than the sum of its proper divisors (2634901).

1009020011 is an equidigital number, since it uses as much as digits as its factorization.

1009020011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2634900.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 1009020011 is about 31765.0753343983. The cubic root of 1009020011 is about 1002.9976752971.

Adding to 1009020011 its reverse (1100209001), we get a palindrome (2109229012).

The spelling of 1009020011 in words is "one billion, nine million, twenty thousand, eleven".