212013111223 has 2 divisors, whose sum is σ = 212013111224. Its totient is φ = 212013111222.

The previous prime is 212013111197. The next prime is 212013111239. The reversal of 212013111223 is 322111310212.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212013111223 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212013111223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212013111923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106006555611 + 106006555612.

It is an arithmetic number, because the mean of its divisors is an integer number (106006555612).

Almost surely, 2^212013111223 is an apocalyptic number.

212013111223 is a deficient number, since it is larger than the sum of its proper divisors (1).

212013111223 is an equidigital number, since it uses as much as digits as its factorization.

212013111223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 212013111223 its reverse (322111310212), we get a palindrome (534124421435).

The spelling of 212013111223 in words is "two hundred twelve billion, thirteen million, one hundred eleven thousand, two hundred twenty-three".