122123279543 has 2 divisors, whose sum is σ = 122123279544. Its totient is φ = 122123279542.

The previous prime is 122123279519. The next prime is 122123279563. The reversal of 122123279543 is 345972321221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122123279543 - 2¹⁴ = 122123263159 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122123279543.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122123279563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61061639771 + 61061639772.

It is an arithmetic number, because the mean of its divisors is an integer number (61061639772).

Almost surely, 2^122123279543 is an apocalyptic number.

122123279543 is a deficient number, since it is larger than the sum of its proper divisors (1).

122123279543 is an equidigital number, since it uses as much as digits as its factorization.

122123279543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 41.

The spelling of 122123279543 in words is "one hundred twenty-two billion, one hundred twenty-three million, two hundred seventy-nine thousand, five hundred forty-three".