12420464123 has 8 divisors (see below), whose sum is σ = 12913367040. Its totient is φ = 11933326440.

The previous prime is 12420464081. The next prime is 12420464159. The reversal of 12420464123 is 32146402421.

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 12420464123 - 2¹⁶ = 12420398587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12420464323) 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, 1436915 + ... + 1445532.

It is an arithmetic number, because the mean of its divisors is an integer number (1614170880).

Almost surely, 2^12420464123 is an apocalyptic number.

12420464123 is a deficient number, since it is larger than the sum of its proper divisors (492902917).

12420464123 is a wasteful number, since it uses less digits than its factorization.

12420464123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2882617.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 12420464123 its reverse (32146402421), we get a palindrome (44566866544).

The spelling of 12420464123 in words is "twelve billion, four hundred twenty million, four hundred sixty-four thousand, one hundred twenty-three".