122543321423 has 2 divisors, whose sum is σ = 122543321424. Its totient is φ = 122543321422.

The previous prime is 122543321393. The next prime is 122543321437. The reversal of 122543321423 is 324123345221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122543321423 - 2³⁰ = 121469579599 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122543321423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122543321023) 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, 61271660711 + 61271660712.

It is an arithmetic number, because the mean of its divisors is an integer number (61271660712).

Almost surely, 2^122543321423 is an apocalyptic number.

122543321423 is a deficient number, since it is larger than the sum of its proper divisors (1).

122543321423 is an equidigital number, since it uses as much as digits as its factorization.

122543321423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 32.

Adding to 122543321423 its reverse (324123345221), we get a palindrome (446666666644).

The spelling of 122543321423 in words is "one hundred twenty-two billion, five hundred forty-three million, three hundred twenty-one thousand, four hundred twenty-three".