12543332001 has 8 divisors (see below), whose sum is σ = 17176454784. Its totient is φ = 8136215280.

The previous prime is 12543331987. The next prime is 12543332023. The reversal of 12543332001 is 10023334521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12543332001 - 2¹⁵ = 12543299233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12543332101) 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, 56501385 + ... + 56501606.

It is an arithmetic number, because the mean of its divisors is an integer number (2147056848).

Almost surely, 2^12543332001 is an apocalyptic number.

It is an amenable number.

12543332001 is a deficient number, since it is larger than the sum of its proper divisors (4633122783).

12543332001 is a wasteful number, since it uses less digits than its factorization.

12543332001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113003031.

The product of its (nonzero) digits is 2160, while the sum is 24.

Adding to 12543332001 its reverse (10023334521), we get a palindrome (22566666522).

The spelling of 12543332001 in words is "twelve billion, five hundred forty-three million, three hundred thirty-two thousand, one".