1312202320223 has 4 divisors (see below), whose sum is σ = 1313052744528. Its totient is φ = 1311351895920.

The previous prime is 1312202320211. The next prime is 1312202320237. The reversal of 1312202320223 is 3220232022131.

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 1312202320223 - 2¹² = 1312202316127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312202320823) 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, 425209838 + ... + 425212923.

It is an arithmetic number, because the mean of its divisors is an integer number (328263186132).

Almost surely, 2^{1312202320223} is an apocalyptic number.

1312202320223 is a deficient number, since it is larger than the sum of its proper divisors (850424305).

1312202320223 is an equidigital number, since it uses as much as digits as its factorization.

1312202320223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850424304.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 1312202320223 its reverse (3220232022131), we get a palindrome (4532434342354).

The spelling of 1312202320223 in words is "one trillion, three hundred twelve billion, two hundred two million, three hundred twenty thousand, two hundred twenty-three".