312203231233 has 4 divisors (see below), whose sum is σ = 312227414100. Its totient is φ = 312179048368.

The previous prime is 312203231231. The next prime is 312203231251. The reversal of 312203231233 is 332132302213.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 158263139329 + 153940091904 = 397823^2 + 392352^2 .

It is a cyclic number.

It is not a de Polignac number, because 312203231233 - 2¹ = 312203231231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312203231198 and 312203231207.

It is not an unprimeable number, because it can be changed into a prime (312203231231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12072058 + ... + 12097891.

It is an arithmetic number, because the mean of its divisors is an integer number (78056853525).

Almost surely, 2^312203231233 is an apocalyptic number.

It is an amenable number.

312203231233 is a deficient number, since it is larger than the sum of its proper divisors (24182867).

312203231233 is a wasteful number, since it uses less digits than its factorization.

312203231233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24182866.

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

Adding to 312203231233 its reverse (332132302213), we get a palindrome (644335533446).

The spelling of 312203231233 in words is "three hundred twelve billion, two hundred three million, two hundred thirty-one thousand, two hundred thirty-three".