1321302031322 has 48 divisors (see below), whose sum is σ = 2508483234600. Its totient is φ = 517324050432.

The previous prime is 1321302031289. The next prime is 1321302031367. The reversal of 1321302031322 is 2231302031231.

It can be written as a sum of positive squares in 4 ways, for example, as 464250086881 + 857051944441 = 681359^2 + 925771^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5222447 + ... + 5469602.

Almost surely, 2^{1321302031322} is an apocalyptic number.

1321302031322 is a deficient number, since it is larger than the sum of its proper divisors (1187181203278).

1321302031322 is a wasteful number, since it uses less digits than its factorization.

1321302031322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10692175 (or 10692168 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 1321302031322 its reverse (2231302031231), we get a palindrome (3552604062553).

Subtracting 1321302031322 from its reverse (2231302031231), we obtain a palindrome (909999999909).

The spelling of 1321302031322 in words is "one trillion, three hundred twenty-one billion, three hundred two million, thirty-one thousand, three hundred twenty-two".