212333230331 has 2 divisors, whose sum is σ = 212333230332. Its totient is φ = 212333230330.

The previous prime is 212333230321. The next prime is 212333230367. The reversal of 212333230331 is 133032333212.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212333230331 - 2²² = 212329036027 is a prime.

It is a super-2 number, since 2×212333230331² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212333230331.

It is not a weakly prime, because it can be changed into another prime (212333230301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106166615165 + 106166615166.

It is an arithmetic number, because the mean of its divisors is an integer number (106166615166).

Almost surely, 2^212333230331 is an apocalyptic number.

212333230331 is a deficient number, since it is larger than the sum of its proper divisors (1).

212333230331 is an equidigital number, since it uses as much as digits as its factorization.

212333230331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 26.

Adding to 212333230331 its reverse (133032333212), we get a palindrome (345365563543).

The spelling of 212333230331 in words is "two hundred twelve billion, three hundred thirty-three million, two hundred thirty thousand, three hundred thirty-one".