1323013002331 has 4 divisors (see below), whose sum is σ = 1323019302192. Its totient is φ = 1323006702472.

The previous prime is 1323013002329. The next prime is 1323013002343. The reversal of 1323013002331 is 1332003103231.

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 1323013002331 - 2¹ = 1323013002329 is a prime.

It is a super-2 number, since 2×1323013002331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1323016002331) 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, 2823655 + ... + 3258688.

It is an arithmetic number, because the mean of its divisors is an integer number (330754825548).

Almost surely, 2^{1323013002331} is an apocalyptic number.

1323013002331 is a deficient number, since it is larger than the sum of its proper divisors (6299861).

1323013002331 is an equidigital number, since it uses as much as digits as its factorization.

1323013002331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6299860.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 1323013002331 its reverse (1332003103231), we get a palindrome (2655016105562).

The spelling of 1323013002331 in words is "one trillion, three hundred twenty-three billion, thirteen million, two thousand, three hundred thirty-one".