1004111111 has 8 divisors (see below), whose sum is σ = 1051974144. Its totient is φ = 957215160.

The previous prime is 1004111099. The next prime is 1004111113. The reversal of 1004111111 is 1111114001.

It is a happy number.

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 1004111111 - 2¹⁴ = 1004094727 is a prime.

It is a Duffinian number.

1004111111 is a modest number, since divided by 11111 gives 10041 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 1004111092 and 1004111101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004111113) 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, 239645 + ... + 243798.

It is an arithmetic number, because the mean of its divisors is an integer number (131496768).

Almost surely, 2^1004111111 is an apocalyptic number.

1004111111 is a deficient number, since it is larger than the sum of its proper divisors (47863033).

1004111111 is an equidigital number, since it uses as much as digits as its factorization.

1004111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483541.

The product of its (nonzero) digits is 4, while the sum is 11.

The square root of 1004111111 is about 31687.7123030363. The cubic root of 1004111111 is about 1001.3684966958.

Adding to 1004111111 its reverse (1111114001), we get a palindrome (2115225112).

The spelling of 1004111111 in words is "one billion, four million, one hundred eleven thousand, one hundred eleven".