12601642143 has 4 divisors (see below), whose sum is σ = 16802189528. Its totient is φ = 8401094760.

The previous prime is 12601642129. The next prime is 12601642147. The reversal of 12601642143 is 34124610621.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12601642143 - 2⁴ = 12601642127 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12601642143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12601642147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2100273688 + ... + 2100273693.

It is an arithmetic number, because the mean of its divisors is an integer number (4200547382).

Almost surely, 2^12601642143 is an apocalyptic number.

12601642143 is a deficient number, since it is larger than the sum of its proper divisors (4200547385).

12601642143 is an equidigital number, since it uses as much as digits as its factorization.

12601642143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4200547384.

The product of its (nonzero) digits is 6912, while the sum is 30.

The spelling of 12601642143 in words is "twelve billion, six hundred one million, six hundred forty-two thousand, one hundred forty-three".