12143021441 has 8 divisors (see below), whose sum is σ = 12403943424. Its totient is φ = 11884596640.

The previous prime is 12143021437. The next prime is 12143021447. The reversal of 12143021441 is 14412034121.

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

It is a cyclic number.

It is not a de Polignac number, because 12143021441 - 2² = 12143021437 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12143021447) 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, 614465 + ... + 633918.

It is an arithmetic number, because the mean of its divisors is an integer number (1550492928).

Almost surely, 2^12143021441 is an apocalyptic number.

It is an amenable number.

12143021441 is a deficient number, since it is larger than the sum of its proper divisors (260921983).

12143021441 is a wasteful number, since it uses less digits than its factorization.

12143021441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1248591.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 12143021441 its reverse (14412034121), we get a palindrome (26555055562).

The spelling of 12143021441 in words is "twelve billion, one hundred forty-three million, twenty-one thousand, four hundred forty-one".