1321003302323 has 4 divisors (see below), whose sum is σ = 1321019845920. Its totient is φ = 1320986758728.

The previous prime is 1321003302263. The next prime is 1321003302337. The reversal of 1321003302323 is 3232033001231.

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

It is a cyclic number.

It is not a de Polignac number, because 1321003302323 - 2⁸ = 1321003302067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1321003302823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8151440 + ... + 8311917.

It is an arithmetic number, because the mean of its divisors is an integer number (330254961480).

Almost surely, 2^{1321003302323} is an apocalyptic number.

1321003302323 is a deficient number, since it is larger than the sum of its proper divisors (16543597).

1321003302323 is an equidigital number, since it uses as much as digits as its factorization.

1321003302323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16543596.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 1321003302323 its reverse (3232033001231), we get a palindrome (4553036303554).

The spelling of 1321003302323 in words is "one trillion, three hundred twenty-one billion, three million, three hundred two thousand, three hundred twenty-three".