122343123215543 has 2 divisors, whose sum is σ = 122343123215544. Its totient is φ = 122343123215542.

The previous prime is 122343123215507. The next prime is 122343123215561. The reversal of 122343123215543 is 345512321343221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122343123215543 - 2¹⁴ = 122343123199159 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122343123215543.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122343123217543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61171561607771 + 61171561607772.

It is an arithmetic number, because the mean of its divisors is an integer number (61171561607772).

Almost surely, 2^{122343123215543} is an apocalyptic number.

122343123215543 is a deficient number, since it is larger than the sum of its proper divisors (1).

122343123215543 is an equidigital number, since it uses as much as digits as its factorization.

122343123215543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 518400, while the sum is 41.

Adding to 122343123215543 its reverse (345512321343221), we get a palindrome (467855444558764).

The spelling of 122343123215543 in words is "one hundred twenty-two trillion, three hundred forty-three billion, one hundred twenty-three million, two hundred fifteen thousand, five hundred forty-three".