1009111093 has 4 divisors (see below), whose sum is σ = 1010108268. Its totient is φ = 1008113920.

The previous prime is 1009111091. The next prime is 1009111121. The reversal of 1009111093 is 3901119001.

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

It can be written as a sum of positive squares in 2 ways, for example, as 40220964 + 968890129 = 6342^2 + 31127^2 .

It is a cyclic number.

It is not a de Polignac number, because 1009111093 - 2¹ = 1009111091 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 (1009111091) 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, 497068 + ... + 499093.

It is an arithmetic number, because the mean of its divisors is an integer number (252527067).

Almost surely, 2^1009111093 is an apocalyptic number.

It is an amenable number.

1009111093 is a deficient number, since it is larger than the sum of its proper divisors (997175).

1009111093 is an equidigital number, since it uses as much as digits as its factorization.

1009111093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997174.

The product of its (nonzero) digits is 243, while the sum is 25.

The square root of 1009111093 is about 31766.5089835191. The cubic root of 1009111093 is about 1003.0278538481.

The spelling of 1009111093 in words is "one billion, nine million, one hundred eleven thousand, ninety-three".