311322520210423 has 4 divisors (see below), whose sum is σ = 317196530025768. Its totient is φ = 305448510395080.

The previous prime is 311322520210381. The next prime is 311322520210489. The reversal of 311322520210423 is 324012025223113.

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 311322520210423 - 2²⁹ = 311321983339511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311322520216423) 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, 2937004907593 + ... + 2937004907698.

It is an arithmetic number, because the mean of its divisors is an integer number (79299132506442).

Almost surely, 2^{311322520210423} is an apocalyptic number.

311322520210423 is a deficient number, since it is larger than the sum of its proper divisors (5874009815345).

311322520210423 is an equidigital number, since it uses as much as digits as its factorization.

311322520210423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5874009815344.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 311322520210423 its reverse (324012025223113), we get a palindrome (635334545433536).

The spelling of 311322520210423 in words is "three hundred eleven trillion, three hundred twenty-two billion, five hundred twenty million, two hundred ten thousand, four hundred twenty-three".