1131320322403 has 4 divisors (see below), whose sum is σ = 1197868576680. Its totient is φ = 1064772068128.

The previous prime is 1131320322383. The next prime is 1131320322527. The reversal of 1131320322403 is 3042230231311.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1131320322403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131320322103) 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, 33274127113 + ... + 33274127146.

It is an arithmetic number, because the mean of its divisors is an integer number (299467144170).

Almost surely, 2^{1131320322403} is an apocalyptic number.

1131320322403 is a deficient number, since it is larger than the sum of its proper divisors (66548254277).

1131320322403 is an equidigital number, since it uses as much as digits as its factorization.

1131320322403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66548254276.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 1131320322403 its reverse (3042230231311), we get a palindrome (4173550553714).

The spelling of 1131320322403 in words is "one trillion, one hundred thirty-one billion, three hundred twenty million, three hundred twenty-two thousand, four hundred three".