1121111232303 has 4 divisors (see below), whose sum is σ = 1494814976408. Its totient is φ = 747407488200.

The previous prime is 1121111232271. The next prime is 1121111232431. The reversal of 1121111232303 is 3032321111211.

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

It is not a de Polignac number, because 1121111232303 - 2⁵ = 1121111232271 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1121111232303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121111232803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186851872048 + ... + 186851872053.

It is an arithmetic number, because the mean of its divisors is an integer number (373703744102).

Almost surely, 2^{1121111232303} is an apocalyptic number.

1121111232303 is a deficient number, since it is larger than the sum of its proper divisors (373703744105).

1121111232303 is an equidigital number, since it uses as much as digits as its factorization.

1121111232303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373703744104.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1121111232303 its reverse (3032321111211), we get a palindrome (4153432343514).

The spelling of 1121111232303 in words is "one trillion, one hundred twenty-one billion, one hundred eleven million, two hundred thirty-two thousand, three hundred three".