1131211322303 has 4 divisors (see below), whose sum is σ = 1146707367888. Its totient is φ = 1115715276720.

The previous prime is 1131211322261. The next prime is 1131211322321. The reversal of 1131211322303 is 3032231121311.

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 1131211322303 - 2²⁰ = 1131210273727 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 (1131211322803) 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, 7748022683 + ... + 7748022828.

It is an arithmetic number, because the mean of its divisors is an integer number (286676841972).

Almost surely, 2^{1131211322303} is an apocalyptic number.

1131211322303 is a deficient number, since it is larger than the sum of its proper divisors (15496045585).

1131211322303 is an equidigital number, since it uses as much as digits as its factorization.

1131211322303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15496045584.

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

Adding to 1131211322303 its reverse (3032231121311), we get a palindrome (4163442443614).

The spelling of 1131211322303 in words is "one trillion, one hundred thirty-one billion, two hundred eleven million, three hundred twenty-two thousand, three hundred three".