1321103230012 has 12 divisors (see below), whose sum is σ = 2433611213320. Its totient is φ = 625785740496.

The previous prime is 1321103230009. The next prime is 1321103230021. The reversal of 1321103230012 is 2100323011231.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8691468543 + ... + 8691468694.

Almost surely, 2^{1321103230012} is an apocalyptic number.

It is an amenable number.

1321103230012 is a deficient number, since it is larger than the sum of its proper divisors (1112507983308).

1321103230012 is a wasteful number, since it uses less digits than its factorization.

1321103230012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17382937260 (or 17382937258 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1321103230012 its reverse (2100323011231), we get a palindrome (3421426241243).

The spelling of 1321103230012 in words is "one trillion, three hundred twenty-one billion, one hundred three million, two hundred thirty thousand, twelve".