212313337 has 2 divisors, whose sum is σ = 212313338. Its totient is φ = 212313336.

The previous prime is 212313331. The next prime is 212313347. The reversal of 212313337 is 733313212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113827561 + 98485776 = 10669^2 + 9924^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212313337 is a prime.

It is not a weakly prime, because it can be changed into another prime (212313331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106156668 + 106156669.

It is an arithmetic number, because the mean of its divisors is an integer number (106156669).

Almost surely, 2^212313337 is an apocalyptic number.

It is an amenable number.

212313337 is a deficient number, since it is larger than the sum of its proper divisors (1).

212313337 is an equidigital number, since it uses as much as digits as its factorization.

212313337 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2268, while the sum is 25.

The square root of 212313337 is about 14570.9758424067. The cubic root of 212313337 is about 596.5668160298.

Adding to 212313337 its reverse (733313212), we get a palindrome (945626549).

The spelling of 212313337 in words is "two hundred twelve million, three hundred thirteen thousand, three hundred thirty-seven".