12143240001 has 12 divisors (see below), whose sum is σ = 17678349312. Its totient is φ = 8031748536.

The previous prime is 12143239987. The next prime is 12143240009. The reversal of 12143240001 is 10004234121.

It is not a de Polignac number, because 12143240001 - 2¹³ = 12143231809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12143240009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5310861 + ... + 5313146.

It is an arithmetic number, because the mean of its divisors is an integer number (1473195776).

Almost surely, 2^12143240001 is an apocalyptic number.

It is an amenable number.

12143240001 is a deficient number, since it is larger than the sum of its proper divisors (5535109311).

12143240001 is a wasteful number, since it uses less digits than its factorization.

12143240001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10624140 (or 10624137 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 12143240001 its reverse (10004234121), we get a palindrome (22147474122).

The spelling of 12143240001 in words is "twelve billion, one hundred forty-three million, two hundred forty thousand, one".