1111201303 has 4 divisors (see below), whose sum is σ = 1111309408. Its totient is φ = 1111093200.

The previous prime is 1111201283. The next prime is 1111201309. The reversal of 1111201303 is 3031021111.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3031021111 = 1319 ⋅2297969.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1111201303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111201309) 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, 36798 + ... + 59803.

It is an arithmetic number, because the mean of its divisors is an integer number (277827352).

Almost surely, 2^1111201303 is an apocalyptic number.

1111201303 is a deficient number, since it is larger than the sum of its proper divisors (108105).

1111201303 is an equidigital number, since it uses as much as digits as its factorization.

1111201303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108104.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 1111201303 is about 33334.6861842136. The cubic root of 1111201303 is about 1035.7721926099.

Adding to 1111201303 its reverse (3031021111), we get a palindrome (4142222414).

The spelling of 1111201303 in words is "one billion, one hundred eleven million, two hundred one thousand, three hundred three".