212111123103343 has 2 divisors, whose sum is σ = 212111123103344. Its totient is φ = 212111123103342.

The previous prime is 212111123103301. The next prime is 212111123103449. The reversal of 212111123103343 is 343301321111212.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212111123103343 - 2¹⁷ = 212111122972271 is a prime.

It is a super-2 number, since 2×212111123103343² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212111123104343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106055561551671 + 106055561551672.

It is an arithmetic number, because the mean of its divisors is an integer number (106055561551672).

Almost surely, 2^{212111123103343} is an apocalyptic number.

212111123103343 is a deficient number, since it is larger than the sum of its proper divisors (1).

212111123103343 is an equidigital number, since it uses as much as digits as its factorization.

212111123103343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

Adding to 212111123103343 its reverse (343301321111212), we get a palindrome (555412444214555).

The spelling of 212111123103343 in words is "two hundred twelve trillion, one hundred eleven billion, one hundred twenty-three million, one hundred three thousand, three hundred forty-three".