312000223 has 2 divisors, whose sum is σ = 312000224. Its totient is φ = 312000222.

The previous prime is 312000193. The next prime is 312000233. The reversal of 312000223 is 322000213.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312000223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312000233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156000111 + 156000112.

It is an arithmetic number, because the mean of its divisors is an integer number (156000112).

Almost surely, 2^312000223 is an apocalyptic number.

312000223 is a deficient number, since it is larger than the sum of its proper divisors (1).

312000223 is an equidigital number, since it uses as much as digits as its factorization.

312000223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 312000223 is about 17663.5280450990. The cubic root of 312000223 is about 678.2424501926.

Adding to 312000223 its reverse (322000213), we get a palindrome (634000436).

The spelling of 312000223 in words is "three hundred twelve million, two hundred twenty-three", and thus it is an aban number.