123200212111 has 2 divisors, whose sum is σ = 123200212112. Its totient is φ = 123200212110.

The previous prime is 123200212081. The next prime is 123200212127. The reversal of 123200212111 is 111212002321.

It is an a-pointer prime, because the next prime (123200212127) can be obtained adding 123200212111 to its sum of digits (16).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123200212111 - 2⁹ = 123200211599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123200215111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61600106055 + 61600106056.

It is an arithmetic number, because the mean of its divisors is an integer number (61600106056).

Almost surely, 2^123200212111 is an apocalyptic number.

123200212111 is a deficient number, since it is larger than the sum of its proper divisors (1).

123200212111 is an equidigital number, since it uses as much as digits as its factorization.

123200212111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 123200212111 its reverse (111212002321), we get a palindrome (234412214432).

The spelling of 123200212111 in words is "one hundred twenty-three billion, two hundred million, two hundred twelve thousand, one hundred eleven".