12143547123 has 16 divisors (see below), whose sum is σ = 16582486272. Its totient is φ = 7902180000.

The previous prime is 12143547109. The next prime is 12143547133. The reversal of 12143547123 is 32174534121.

It is not a de Polignac number, because 12143547123 - 2⁸ = 12143546867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12143547133) 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, 229303 + ... + 277248.

It is an arithmetic number, because the mean of its divisors is an integer number (1036405392).

Almost surely, 2^12143547123 is an apocalyptic number.

12143547123 is a deficient number, since it is larger than the sum of its proper divisors (4438939149).

12143547123 is a wasteful number, since it uses less digits than its factorization.

12143547123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506746.

The product of its digits is 20160, while the sum is 33.

The spelling of 12143547123 in words is "twelve billion, one hundred forty-three million, five hundred forty-seven thousand, one hundred twenty-three".