1131221332103 has 16 divisors (see below), whose sum is σ = 1188184857600. Its totient is φ = 1075558616640.

The previous prime is 1131221332099. The next prime is 1131221332139. The reversal of 1131221332103 is 3012331221311.

It is a cyclic number.

It is not a de Polignac number, because 1131221332103 - 2² = 1131221332099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131221335103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3029828 + ... + 3382646.

It is an arithmetic number, because the mean of its divisors is an integer number (74261553600).

Almost surely, 2^{1131221332103} is an apocalyptic number.

1131221332103 is a deficient number, since it is larger than the sum of its proper divisors (56963525497).

1131221332103 is a wasteful number, since it uses less digits than its factorization.

1131221332103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354662.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 1131221332103 its reverse (3012331221311), we get a palindrome (4143552553414).

The spelling of 1131221332103 in words is "one trillion, one hundred thirty-one billion, two hundred twenty-one million, three hundred thirty-two thousand, one hundred three".