1103311121 has 8 divisors (see below), whose sum is σ = 1203890688. Its totient is φ = 1002778000.

The previous prime is 1103311117. The next prime is 1103311129. The reversal of 1103311121 is 1211133011.

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 1103311121 - 2² = 1103311117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1103311096 and 1103311105.

It is not an unprimeable number, because it can be changed into a prime (1103311129) 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, 54416 + ... + 71886.

It is an arithmetic number, because the mean of its divisors is an integer number (150486336).

Almost surely, 2^1103311121 is an apocalyptic number.

1103311121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1103311121 is a deficient number, since it is larger than the sum of its proper divisors (100579567).

1103311121 is a wasteful number, since it uses less digits than its factorization.

1103311121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23223.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 1103311121 is about 33216.1274232864. The cubic root of 1103311121 is about 1033.3148368408.

Adding to 1103311121 its reverse (1211133011), we get a palindrome (2314444132).

The spelling of 1103311121 in words is "one billion, one hundred three million, three hundred eleven thousand, one hundred twenty-one".