1311223422303 has 12 divisors (see below), whose sum is σ = 1894034850240. Its totient is φ = 874127965536.

The previous prime is 1311223422287. The next prime is 1311223422329. The reversal of 1311223422303 is 3032243221131.

1311223422303 is a `hidden beast` number, since 1 + 3 + 1 + 12 + 2 + 342 + 2 + 303 = 666.

It is not a de Polignac number, because 1311223422303 - 2⁴ = 1311223422287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311223422703) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1347951 + ... + 2106992.

It is an arithmetic number, because the mean of its divisors is an integer number (157836237520).

Almost surely, 2^{1311223422303} is an apocalyptic number.

1311223422303 is a deficient number, since it is larger than the sum of its proper divisors (582811427937).

1311223422303 is a wasteful number, since it uses less digits than its factorization.

1311223422303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3497118 (or 3497115 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 1311223422303 its reverse (3032243221131), we get a palindrome (4343466643434).

The spelling of 1311223422303 in words is "one trillion, three hundred eleven billion, two hundred twenty-three million, four hundred twenty-two thousand, three hundred three".