1320323130331 has 4 divisors (see below), whose sum is σ = 1322668287432. Its totient is φ = 1317977973232.

The previous prime is 1320323130323. The next prime is 1320323130361. The reversal of 1320323130331 is 1330313230231.

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 1320323130331 - 2³ = 1320323130323 is a prime.

It is a super-2 number, since 2×1320323130331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1320323130296 and 1320323130305.

It is not an unprimeable number, because it can be changed into a prime (1320323130361) 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, 1172577706 + ... + 1172578831.

It is an arithmetic number, because the mean of its divisors is an integer number (330667071858).

Almost surely, 2^{1320323130331} is an apocalyptic number.

1320323130331 is a deficient number, since it is larger than the sum of its proper divisors (2345157101).

1320323130331 is an equidigital number, since it uses as much as digits as its factorization.

1320323130331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2345157100.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 1320323130331 its reverse (1330313230231), we get a palindrome (2650636360562).

The spelling of 1320323130331 in words is "one trillion, three hundred twenty billion, three hundred twenty-three million, one hundred thirty thousand, three hundred thirty-one".