12122123123 has 8 divisors (see below), whose sum is σ = 13227425280. Its totient is φ = 11017369480.

The previous prime is 12122123107. The next prime is 12122123131. The reversal of 12122123123 is 32132122121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12122123123 - 2⁴ = 12122123107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12122123095 and 12122123104.

It is not an unprimeable number, because it can be changed into a prime (12122123623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90215 + ... + 179952.

It is an arithmetic number, because the mean of its divisors is an integer number (1653428160).

Almost surely, 2^12122123123 is an apocalyptic number.

12122123123 is a deficient number, since it is larger than the sum of its proper divisors (1105302157).

12122123123 is a wasteful number, since it uses less digits than its factorization.

12122123123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274257.

The product of its digits is 288, while the sum is 20.

Adding to 12122123123 its reverse (32132122121), we get a palindrome (44254245244).

The spelling of 12122123123 in words is "twelve billion, one hundred twenty-two million, one hundred twenty-three thousand, one hundred twenty-three".