1103311111 has 8 divisors (see below), whose sum is σ = 1301602304. Its totient is φ = 915188760.

The previous prime is 1103311109. The next prime is 1103311117. The reversal of 1103311111 is 1111133011.

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 1103311111 - 2¹ = 1103311109 is a prime.

It is a Duffinian number.

1103311111 is a modest number, since divided by 11111 gives 11033 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 1103311091 and 1103311100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103311117) 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, 2541975 + ... + 2542408.

It is an arithmetic number, because the mean of its divisors is an integer number (162700288).

Almost surely, 2^1103311111 is an apocalyptic number.

1103311111 is a deficient number, since it is larger than the sum of its proper divisors (198291193).

1103311111 is an equidigital number, since it uses as much as digits as its factorization.

1103311111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5084421.

The product of its (nonzero) digits is 9, while the sum is 13.

The square root of 1103311111 is about 33216.1272727571. The cubic root of 1103311111 is about 1033.3148337190.

Adding to 1103311111 its reverse (1111133011), we get a palindrome (2214444122).

The spelling of 1103311111 in words is "one billion, one hundred three million, three hundred eleven thousand, one hundred eleven".