1311303303222 has 48 divisors (see below), whose sum is σ = 2911241568816. Its totient is φ = 393430312000.

The previous prime is 1311303303217. The next prime is 1311303303241. The reversal of 1311303303222 is 2223033031131.

It is a junction number, because it is equal to n+sod(n) for n = 1311303303192 and 1311303303201.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 8868273 + ... + 9014924.

It is an arithmetic number, because the mean of its divisors is an integer number (60650866017).

Almost surely, 2^{1311303303222} is an apocalyptic number.

1311303303222 is an abundant number, since it is smaller than the sum of its proper divisors (1599938265594).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1311303303222 is a wasteful number, since it uses less digits than its factorization.

1311303303222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17883325 (or 17883314 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 1311303303222 its reverse (2223033031131), we get a palindrome (3534336334353).

The spelling of 1311303303222 in words is "one trillion, three hundred eleven billion, three hundred three million, three hundred three thousand, two hundred twenty-two".