1001011109 has 8 divisors (see below), whose sum is σ = 1148801280. Its totient is φ = 854418096.

The previous prime is 1001011103. The next prime is 1001011117. The reversal of 1001011109 is 9011101001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1001011109 - 2¹² = 1001007013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1001011093 and 1001011102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001011103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 297494 + ... + 300839.

It is an arithmetic number, because the mean of its divisors is an integer number (143600160).

Almost surely, 2^1001011109 is an apocalyptic number.

It is an amenable number.

1001011109 is a deficient number, since it is larger than the sum of its proper divisors (147790171).

1001011109 is an equidigital number, since it uses as much as digits as its factorization.

1001011109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598579.

The product of its (nonzero) digits is 9, while the sum is 14.

The square root of 1001011109 is about 31638.7595995798. The cubic root of 1001011109 is about 1000.3369228036.

The spelling of 1001011109 in words is "one billion, one million, eleven thousand, one hundred nine".