1321311031324 has 48 divisors (see below), whose sum is σ = 2395846464480. Its totient is φ = 636857061120.

The previous prime is 1321311031303. The next prime is 1321311031333. The reversal of 1321311031324 is 4231301131231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 372513319 + ... + 372516865.

It is an arithmetic number, because the mean of its divisors is an integer number (49913468010).

Almost surely, 2^{1321311031324} is an apocalyptic number.

It is an amenable number.

1321311031324 is a deficient number, since it is larger than the sum of its proper divisors (1074535433156).

1321311031324 is a wasteful number, since it uses less digits than its factorization.

1321311031324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7798 (or 7796 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 1321311031324 its reverse (4231301131231), we get a palindrome (5552612162555).

The spelling of 1321311031324 in words is "one trillion, three hundred twenty-one billion, three hundred eleven million, thirty-one thousand, three hundred twenty-four".