312312230233 has 4 divisors (see below), whose sum is σ = 312314951988. Its totient is φ = 312309508480.

The previous prime is 312312230207. The next prime is 312312230239. The reversal of 312312230233 is 332032213213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 332032213213 = 83 ⋅4000388111.

It can be written as a sum of positive squares in 2 ways, for example, as 48555003904 + 263757226329 = 220352^2 + 513573^2 .

It is a cyclic number.

It is not a de Polignac number, because 312312230233 - 2²¹ = 312310133081 is a prime.

It is a super-2 number, since 2×312312230233² (a number of 24 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 = 312312230198 and 312312230207.

It is not an unprimeable number, because it can be changed into a prime (312312230239) 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, 1180816 + ... + 1420897.

It is an arithmetic number, because the mean of its divisors is an integer number (78078737997).

Almost surely, 2^312312230233 is an apocalyptic number.

It is an amenable number.

312312230233 is a deficient number, since it is larger than the sum of its proper divisors (2721755).

312312230233 is a wasteful number, since it uses less digits than its factorization.

312312230233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2721754.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 312312230233 its reverse (332032213213), we get a palindrome (644344443446).

The spelling of 312312230233 in words is "three hundred twelve billion, three hundred twelve million, two hundred thirty thousand, two hundred thirty-three".