212303121223 has 2 divisors, whose sum is σ = 212303121224. Its totient is φ = 212303121222.

The previous prime is 212303121209. The next prime is 212303121241. The reversal of 212303121223 is 322121303212.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212303121223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212303121194 and 212303121203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212303121923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106151560611 + 106151560612.

It is an arithmetic number, because the mean of its divisors is an integer number (106151560612).

Almost surely, 2^212303121223 is an apocalyptic number.

212303121223 is a deficient number, since it is larger than the sum of its proper divisors (1).

212303121223 is an equidigital number, since it uses as much as digits as its factorization.

212303121223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 212303121223 its reverse (322121303212), we get a palindrome (534424424435).

The spelling of 212303121223 in words is "two hundred twelve billion, three hundred three million, one hundred twenty-one thousand, two hundred twenty-three".