312432233 has 2 divisors, whose sum is σ = 312432234. Its totient is φ = 312432232.

The previous prime is 312432227. The next prime is 312432271. The reversal of 312432233 is 332234213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 247999504 + 64432729 = 15748^2 + 8027^2 .

It is a cyclic number.

It is not a de Polignac number, because 312432233 - 2⁴ = 312432217 is a prime.

It is a super-2 number, since 2×312432233² = 195227800434732578, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 312432199 and 312432208.

It is not a weakly prime, because it can be changed into another prime (312432433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156216116 + 156216117.

It is an arithmetic number, because the mean of its divisors is an integer number (156216117).

Almost surely, 2^312432233 is an apocalyptic number.

It is an amenable number.

312432233 is a deficient number, since it is larger than the sum of its proper divisors (1).

312432233 is an equidigital number, since it uses as much as digits as its factorization.

312432233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 23.

The square root of 312432233 is about 17675.7526855294. The cubic root of 312432233 is about 678.5553478189. Note that the first 3 decimals are identical.

Adding to 312432233 its reverse (332234213), we get a palindrome (644666446).

The spelling of 312432233 in words is "three hundred twelve million, four hundred thirty-two thousand, two hundred thirty-three".