122042404123 has 4 divisors (see below), whose sum is σ = 125019048168. Its totient is φ = 119065760080.

The previous prime is 122042404091. The next prime is 122042404129. The reversal of 122042404123 is 321404240221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122042404123 - 2⁵ = 122042404091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122042404129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1488321961 + ... + 1488322042.

It is an arithmetic number, because the mean of its divisors is an integer number (31254762042).

Almost surely, 2^122042404123 is an apocalyptic number.

122042404123 is a deficient number, since it is larger than the sum of its proper divisors (2976644045).

122042404123 is an equidigital number, since it uses as much as digits as its factorization.

122042404123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2976644044.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 122042404123 its reverse (321404240221), we get a palindrome (443446644344).

The spelling of 122042404123 in words is "one hundred twenty-two billion, forty-two million, four hundred four thousand, one hundred twenty-three".