1311322003223 has 4 divisors (see below), whose sum is σ = 1311366982248. Its totient is φ = 1311277024200.

The previous prime is 1311322003207. The next prime is 1311322003237. The reversal of 1311322003223 is 3223002231131.

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 1311322003223 - 2⁴ = 1311322003207 is a prime.

It is a super-2 number, since 2×1311322003223² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311322002223) 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, 22445753 + ... + 22504098.

It is an arithmetic number, because the mean of its divisors is an integer number (327841745562).

Almost surely, 2^{1311322003223} is an apocalyptic number.

1311322003223 is a deficient number, since it is larger than the sum of its proper divisors (44979025).

1311322003223 is an equidigital number, since it uses as much as digits as its factorization.

1311322003223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44979024.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 1311322003223 its reverse (3223002231131), we get a palindrome (4534324234354).

The spelling of 1311322003223 in words is "one trillion, three hundred eleven billion, three hundred twenty-two million, three thousand, two hundred twenty-three".