12421012143 has 16 divisors (see below), whose sum is σ = 16801779456. Its totient is φ = 8160559680.

The previous prime is 12421012133. The next prime is 12421012151. The reversal of 12421012143 is 34121012421.

It is not a de Polignac number, because 12421012143 - 2⁸ = 12421011887 is a prime.

It is a super-3 number, since 3×12421012143³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12421012133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 546280 + ... + 568562.

It is an arithmetic number, because the mean of its divisors is an integer number (1050111216).

Almost surely, 2^12421012143 is an apocalyptic number.

12421012143 is a deficient number, since it is larger than the sum of its proper divisors (4380767313).

12421012143 is a wasteful number, since it uses less digits than its factorization.

12421012143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24974.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 12421012143 its reverse (34121012421), we get a palindrome (46542024564).

The spelling of 12421012143 in words is "twelve billion, four hundred twenty-one million, twelve thousand, one hundred forty-three".