122111344123 has 4 divisors (see below), whose sum is σ = 122138709408. Its totient is φ = 122083978840.

The previous prime is 122111344111. The next prime is 122111344133. The reversal of 122111344123 is 321443111221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122111344123 is a prime.

It is a super-2 number, since 2×122111344123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122111344133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13675948 + ... + 13684873.

It is an arithmetic number, because the mean of its divisors is an integer number (30534677352).

Almost surely, 2^122111344123 is an apocalyptic number.

122111344123 is a deficient number, since it is larger than the sum of its proper divisors (27365285).

122111344123 is an equidigital number, since it uses as much as digits as its factorization.

122111344123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27365284.

The product of its digits is 1152, while the sum is 25.

Adding to 122111344123 its reverse (321443111221), we get a palindrome (443554455344).

The spelling of 122111344123 in words is "one hundred twenty-two billion, one hundred eleven million, three hundred forty-four thousand, one hundred twenty-three".