1011038009 has 12 divisors (see below), whose sum is σ = 1044860544. Its totient is φ = 977775264.

The previous prime is 1011037997. The next prime is 1011038011. The reversal of 1011038009 is 9008301101.

It is not a de Polignac number, because 1011038009 - 2¹² = 1011033913 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011034009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2212109 + ... + 2212565.

It is an arithmetic number, because the mean of its divisors is an integer number (87071712).

Almost surely, 2^1011038009 is an apocalyptic number.

It is an amenable number.

1011038009 is a deficient number, since it is larger than the sum of its proper divisors (33822535).

1011038009 is an frugal number, since it uses more digits than its factorization.

1011038009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064 (or 607 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 23.

The square root of 1011038009 is about 31796.8238822685. The cubic root of 1011038009 is about 1003.6658812266.

The spelling of 1011038009 in words is "one billion, eleven million, thirty-eight thousand, nine".