12213142434123 has 16 divisors (see below), whose sum is σ = 17142690673920. Its totient is φ = 7712916482016.

The previous prime is 12213142434109. The next prime is 12213142434139. The reversal of 12213142434123 is 32143424131221.

It is not a de Polignac number, because 12213142434123 - 2⁸ = 12213142433867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12213142434173) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8302540 + ... + 9662217.

It is an arithmetic number, because the mean of its divisors is an integer number (1071418167120).

Almost surely, 2^{12213142434123} is an apocalyptic number.

12213142434123 is a deficient number, since it is larger than the sum of its proper divisors (4929548239797).

12213142434123 is a wasteful number, since it uses less digits than its factorization.

12213142434123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17976706.

The product of its digits is 27648, while the sum is 33.

Adding to 12213142434123 its reverse (32143424131221), we get a palindrome (44356566565344).

The spelling of 12213142434123 in words is "twelve trillion, two hundred thirteen billion, one hundred forty-two million, four hundred thirty-four thousand, one hundred twenty-three".