312312213223 has 2 divisors, whose sum is σ = 312312213224. Its totient is φ = 312312213222.

The previous prime is 312312213211. The next prime is 312312213251. The reversal of 312312213223 is 322312213213.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312312213223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312312243223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156156106611 + 156156106612.

It is an arithmetic number, because the mean of its divisors is an integer number (156156106612).

Almost surely, 2^312312213223 is an apocalyptic number.

312312213223 is a deficient number, since it is larger than the sum of its proper divisors (1).

312312213223 is an equidigital number, since it uses as much as digits as its factorization.

312312213223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 25.

Adding to 312312213223 its reverse (322312213213), we get a palindrome (634624426436).

The spelling of 312312213223 in words is "three hundred twelve billion, three hundred twelve million, two hundred thirteen thousand, two hundred twenty-three".