111100001009 has 8 divisors (see below), whose sum is σ = 117645465960. Its totient is φ = 104555666176.

The previous prime is 111100001003. The next prime is 111100001011. The reversal of 111100001009 is 900100001111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 19257667984 + 91842333025 = 138772^2 + 303055^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 111100001009 - 2²⁸ = 110831565553 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111100000984 and 111100001002.

It is not an unprimeable number, because it can be changed into a prime (111100001003) 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, 75794 + ... + 477435.

It is an arithmetic number, because the mean of its divisors is an integer number (14705683245).

Almost surely, 2^111100001009 is an apocalyptic number.

It is an amenable number.

111100001009 is a deficient number, since it is larger than the sum of its proper divisors (6545464951).

111100001009 is a wasteful number, since it uses less digits than its factorization.

111100001009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565059.

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

The spelling of 111100001009 in words is "one hundred eleven billion, one hundred million, one thousand, nine".