311132321323 has 4 divisors (see below), whose sum is σ = 318720914568. Its totient is φ = 303543728080.

The previous prime is 311132321293. The next prime is 311132321329. The reversal of 311132321323 is 323123231113.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 323123231113 = 17 ⋅19007248889.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311132321323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311132321329) 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, 3794296561 + ... + 3794296642.

It is an arithmetic number, because the mean of its divisors is an integer number (79680228642).

Almost surely, 2^311132321323 is an apocalyptic number.

311132321323 is a deficient number, since it is larger than the sum of its proper divisors (7588593245).

311132321323 is an equidigital number, since it uses as much as digits as its factorization.

311132321323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7588593244.

The product of its digits is 1944, while the sum is 25.

Adding to 311132321323 its reverse (323123231113), we get a palindrome (634255552436).

The spelling of 311132321323 in words is "three hundred eleven billion, one hundred thirty-two million, three hundred twenty-one thousand, three hundred twenty-three".