1323273066331 has 4 divisors (see below), whose sum is σ = 1325370171664. Its totient is φ = 1321175961000.

The previous prime is 1323273066287. The next prime is 1323273066337. The reversal of 1323273066331 is 1336603723231.

It is a happy number.

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 1323273066331 - 2²¹ = 1323270969179 is a prime.

It is a super-2 number, since 2×1323273066331² (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 (1323273066337) 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, 1048551720 + ... + 1048552981.

It is an arithmetic number, because the mean of its divisors is an integer number (331342542916).

Almost surely, 2^{1323273066331} is an apocalyptic number.

1323273066331 is a deficient number, since it is larger than the sum of its proper divisors (2097105333).

1323273066331 is an equidigital number, since it uses as much as digits as its factorization.

1323273066331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2097105332.

The product of its (nonzero) digits is 244944, while the sum is 40.

Adding to 1323273066331 its reverse (1336603723231), we get a palindrome (2659876789562).

The spelling of 1323273066331 in words is "one trillion, three hundred twenty-three billion, two hundred seventy-three million, sixty-six thousand, three hundred thirty-one".