12021143143 has 8 divisors (see below), whose sum is σ = 12063392640. Its totient is φ = 11978930040.

The previous prime is 12021143027. The next prime is 12021143161. The reversal of 12021143143 is 34134112021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12021143143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021143243) 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, 766446 + ... + 781972.

It is an arithmetic number, because the mean of its divisors is an integer number (1507924080).

Almost surely, 2^12021143143 is an apocalyptic number.

12021143143 is a deficient number, since it is larger than the sum of its proper divisors (42249497).

12021143143 is a wasteful number, since it uses less digits than its factorization.

12021143143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18197.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 12021143143 its reverse (34134112021), we get a palindrome (46155255164).

The spelling of 12021143143 in words is "twelve billion, twenty-one million, one hundred forty-three thousand, one hundred forty-three".