212130322320331 has 2 divisors, whose sum is σ = 212130322320332. Its totient is φ = 212130322320330.

The previous prime is 212130322320317. The next prime is 212130322320341. The reversal of 212130322320331 is 133023223031212.

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-212130322320331 is a prime.

It is a super-2 number, since 2×212130322320331² (a number of 29 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 212130322320331.

It is not a weakly prime, because it can be changed into another prime (212130322320341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106065161160165 + 106065161160166.

It is an arithmetic number, because the mean of its divisors is an integer number (106065161160166).

Almost surely, 2^{212130322320331} is an apocalyptic number.

212130322320331 is a deficient number, since it is larger than the sum of its proper divisors (1).

212130322320331 is an equidigital number, since it uses as much as digits as its factorization.

212130322320331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 212130322320331 its reverse (133023223031212), we get a palindrome (345153545351543).

The spelling of 212130322320331 in words is "two hundred twelve trillion, one hundred thirty billion, three hundred twenty-two million, three hundred twenty thousand, three hundred thirty-one".