312243323233231 has 12 divisors (see below), whose sum is σ = 338201737575120. Its totient is φ = 288146091567360.

The previous prime is 312243323233213. The next prime is 312243323233267. The reversal of 312243323233231 is 132332323342213.

It is not a de Polignac number, because 312243323233231 - 2¹⁹ = 312243322708943 is a prime.

It is a super-2 number, since 2×312243323233231² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312243323263231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 251026786 + ... + 252267583.

It is an arithmetic number, because the mean of its divisors is an integer number (28183478131260).

Almost surely, 2^{312243323233231} is an apocalyptic number.

312243323233231 is a deficient number, since it is larger than the sum of its proper divisors (25958414341889).

312243323233231 is a wasteful number, since it uses less digits than its factorization.

312243323233231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503298066 (or 503298053 counting only the distinct ones).

The product of its digits is 279936, while the sum is 37.

Adding to 312243323233231 its reverse (132332323342213), we get a palindrome (444575646575444).

The spelling of 312243323233231 in words is "three hundred twelve trillion, two hundred forty-three billion, three hundred twenty-three million, two hundred thirty-three thousand, two hundred thirty-one".