1311321254332 has 24 divisors (see below), whose sum is σ = 2348394569136. Its totient is φ = 640354165248.

The previous prime is 1311321254303. The next prime is 1311321254333. The reversal of 1311321254332 is 2334521231131.

It is a junction number, because it is equal to n+sod(n) for n = 1311321254294 and 1311321254303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311321254333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1569228 + ... + 2255020.

It is an arithmetic number, because the mean of its divisors is an integer number (97849773714).

Almost surely, 2^{1311321254332} is an apocalyptic number.

It is an amenable number.

1311321254332 is a deficient number, since it is larger than the sum of its proper divisors (1037073314804).

1311321254332 is a wasteful number, since it uses less digits than its factorization.

1311321254332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696957 (or 696955 counting only the distinct ones).

The product of its digits is 12960, while the sum is 31.

Adding to 1311321254332 its reverse (2334521231131), we get a palindrome (3645842485463).

The spelling of 1311321254332 in words is "one trillion, three hundred eleven billion, three hundred twenty-one million, two hundred fifty-four thousand, three hundred thirty-two".