1321322013332 has 24 divisors (see below), whose sum is σ = 2352888358632. Its totient is φ = 649092787200.

The previous prime is 1321322013329. The next prime is 1321322013383. The reversal of 1321322013332 is 2333102231231.

It can be written as a sum of positive squares in 4 ways, for example, as 6139662736 + 1315182350596 = 78356^2 + 1146814^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2858393 + ... + 3288320.

It is an arithmetic number, because the mean of its divisors is an integer number (98037014943).

Almost surely, 2^{1321322013332} is an apocalyptic number.

It is an amenable number.

1321322013332 is a deficient number, since it is larger than the sum of its proper divisors (1031566345300).

1321322013332 is a wasteful number, since it uses less digits than its factorization.

1321322013332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6147659 (or 6147657 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 1321322013332 its reverse (2333102231231), we get a palindrome (3654424244563).

The spelling of 1321322013332 in words is "one trillion, three hundred twenty-one billion, three hundred twenty-two million, thirteen thousand, three hundred thirty-two".