12421143141 has 16 divisors (see below), whose sum is σ = 18284797440. Its totient is φ = 7437265520.

The previous prime is 12421143121. The next prime is 12421143157. The reversal of 12421143141 is 14134112421.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12421143141 - 2¹⁰ = 12421142117 is a prime.

It is a super-2 number, since 2×12421143141² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12421143101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2264721 + ... + 2270198.

It is an arithmetic number, because the mean of its divisors is an integer number (1142799840).

Almost surely, 2^12421143141 is an apocalyptic number.

12421143141 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12421143141 is a deficient number, since it is larger than the sum of its proper divisors (5863654299).

12421143141 is a wasteful number, since it uses less digits than its factorization.

12421143141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4535016.

The product of its digits is 768, while the sum is 24.

Adding to 12421143141 its reverse (14134112421), we get a palindrome (26555255562).

The spelling of 12421143141 in words is "twelve billion, four hundred twenty-one million, one hundred forty-three thousand, one hundred forty-one".