12042517143 has 16 divisors (see below), whose sum is σ = 16560700416. Its totient is φ = 7779722400.

The previous prime is 12042517073. The next prime is 12042517147. The reversal of 12042517143 is 34171524021.

It is not a de Polignac number, because 12042517143 - 2⁹ = 12042516631 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12042517143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12042517147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 408571 + ... + 437052.

It is an arithmetic number, because the mean of its divisors is an integer number (1035043776).

Almost surely, 2^12042517143 is an apocalyptic number.

12042517143 is a deficient number, since it is larger than the sum of its proper divisors (4518183273).

12042517143 is a wasteful number, since it uses less digits than its factorization.

12042517143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845774.

The product of its (nonzero) digits is 6720, while the sum is 30.

The spelling of 12042517143 in words is "twelve billion, forty-two million, five hundred seventeen thousand, one hundred forty-three".