1323111320002 has 4 divisors (see below), whose sum is σ = 1984666980006. Its totient is φ = 661555660000.

The previous prime is 1323111319961. The next prime is 1323111320017. The reversal of 1323111320002 is 2000231113231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1285187262921 + 37924057081 = 1133661^2 + 194741^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330777829999 + ... + 330777830002.

Almost surely, 2^{1323111320002} is an apocalyptic number.

1323111320002 is a deficient number, since it is larger than the sum of its proper divisors (661555660004).

1323111320002 is an equidigital number, since it uses as much as digits as its factorization.

1323111320002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661555660003.

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

Adding to 1323111320002 its reverse (2000231113231), we get a palindrome (3323342433233).

The spelling of 1323111320002 in words is "one trillion, three hundred twenty-three billion, one hundred eleven million, three hundred twenty thousand, two".