1311223710232 has 16 divisors (see below), whose sum is σ = 2458918364760. Its totient is φ = 655512146304.

The previous prime is 1311223710229. The next prime is 1311223710233. The reversal of 1311223710232 is 2320173221131.

It is a self number, because there is not a number n which added to its sum of digits gives 1311223710232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311223710233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12407698 + ... + 12512929.

Almost surely, 2^{1311223710232} is an apocalyptic number.

It is an amenable number.

1311223710232 is a deficient number, since it is larger than the sum of its proper divisors (1147694654528).

1311223710232 is a wasteful number, since it uses less digits than its factorization.

1311223710232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24927210 (or 24927206 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

Adding to 1311223710232 its reverse (2320173221131), we get a palindrome (3631396931363).

The spelling of 1311223710232 in words is "one trillion, three hundred eleven billion, two hundred twenty-three million, seven hundred ten thousand, two hundred thirty-two".