1103111113 has 8 divisors (see below), whose sum is σ = 1257846408. Its totient is φ = 958358784.

The previous prime is 1103111111. The next prime is 1103111117. The reversal of 1103111113 is 3111113011.

It can be written as a sum of positive squares in 4 ways, for example, as 161112249 + 941998864 = 12693^2 + 30692^2 .

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 1103111113 - 2¹ = 1103111111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 1103111093 and 1103111102.

It is not an unprimeable number, because it can be changed into a prime (1103111111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2495506 + ... + 2495947.

It is an arithmetic number, because the mean of its divisors is an integer number (157230801).

Almost surely, 2^1103111113 is an apocalyptic number.

1103111113 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1103111113 is a deficient number, since it is larger than the sum of its proper divisors (154735295).

1103111113 is a wasteful number, since it uses less digits than its factorization.

1103111113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4991483.

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

The square root of 1103111113 is about 33213.1165806523. The cubic root of 1103111113 is about 1033.2523933712.

Adding to 1103111113 its reverse (3111113011), we get a palindrome (4214224124).

The spelling of 1103111113 in words is "one billion, one hundred three million, one hundred eleven thousand, one hundred thirteen".