3112123213 has 2 divisors, whose sum is σ = 3112123214. Its totient is φ = 3112123212.

The previous prime is 3112123199. The next prime is 3112123229. The reversal of 3112123213 is 3123212113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3086691364 + 25431849 = 55558^2 + 5043^2 .

It is a cyclic number.

It is not a de Polignac number, because 3112123213 - 2⁵ = 3112123181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3112121213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1556061606 + 1556061607.

It is an arithmetic number, because the mean of its divisors is an integer number (1556061607).

Almost surely, 2^3112123213 is an apocalyptic number.

It is an amenable number.

3112123213 is a deficient number, since it is larger than the sum of its proper divisors (1).

3112123213 is an equidigital number, since it uses as much as digits as its factorization.

3112123213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216, while the sum is 19.

The square root of 3112123213 is about 55786.4070630113. The cubic root of 3112123213 is about 1459.9980004038.

Adding to 3112123213 its reverse (3123212113), we get a palindrome (6235335326).

Subtracting 3112123213 from its reverse (3123212113), we obtain a square (11088900 = 3330²).

The spelling of 3112123213 in words is "three billion, one hundred twelve million, one hundred twenty-three thousand, two hundred thirteen".