122404123 has 2 divisors, whose sum is σ = 122404124. Its totient is φ = 122404122.

The previous prime is 122404043. The next prime is 122404133. The reversal of 122404123 is 321404221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122404123 - 2²¹ = 120306971 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122404123.

It is not a weakly prime, because it can be changed into another prime (122404133) 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, 61202061 + 61202062.

It is an arithmetic number, because the mean of its divisors is an integer number (61202062).

Almost surely, 2^122404123 is an apocalyptic number.

122404123 is a deficient number, since it is larger than the sum of its proper divisors (1).

122404123 is an equidigital number, since it uses as much as digits as its factorization.

122404123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 122404123 is about 11063.6396814068. The cubic root of 122404123 is about 496.5145909691.

Adding to 122404123 its reverse (321404221), we get a palindrome (443808344).

The spelling of 122404123 in words is "one hundred twenty-two million, four hundred four thousand, one hundred twenty-three".