312032223 has 16 divisors (see below), whose sum is σ = 466594560. Its totient is φ = 206075448.

The previous prime is 312032207. The next prime is 312032243. The reversal of 312032223 is 322230213.

It is a happy number.

It is not a de Polignac number, because 312032223 - 2⁴ = 312032207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 312032196 and 312032205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312032243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51115 + ... + 56892.

It is an arithmetic number, because the mean of its divisors is an integer number (29162160).

Almost surely, 2^312032223 is an apocalyptic number.

312032223 is a deficient number, since it is larger than the sum of its proper divisors (154562337).

312032223 is a wasteful number, since it uses less digits than its factorization.

312032223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108123 (or 108117 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 312032223 is about 17664.4338431777. The cubic root of 312032223 is about 678.2656371594.

Adding to 312032223 its reverse (322230213), we get a palindrome (634262436).

The spelling of 312032223 in words is "three hundred twelve million, thirty-two thousand, two hundred twenty-three".