1133311103 has 4 divisors (see below), whose sum is σ = 1199976480. Its totient is φ = 1066645728.

The previous prime is 1133311099. The next prime is 1133311129. The reversal of 1133311103 is 3011133311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1133311103 - 2² = 1133311099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 66665359 = 1133311103 / (1 + 1 + 3 + 3 + 3 + 1 + 1 + 1 + 0 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1133311303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33332663 + ... + 33332696.

It is an arithmetic number, because the mean of its divisors is an integer number (299994120).

Almost surely, 2^1133311103 is an apocalyptic number.

1133311103 is a deficient number, since it is larger than the sum of its proper divisors (66665377).

1133311103 is an equidigital number, since it uses as much as digits as its factorization.

1133311103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66665376.

The product of its (nonzero) digits is 81, while the sum is 17.

The square root of 1133311103 is about 33664.6862899389. The cubic root of 1133311103 is about 1042.5967845244.

Adding to 1133311103 its reverse (3011133311), we get a palindrome (4144444414).

The spelling of 1133311103 in words is "one billion, one hundred thirty-three million, three hundred eleven thousand, one hundred three".