12421203134 has 16 divisors (see below), whose sum is σ = 19104845760. Its totient is φ = 6053216640.

The previous prime is 12421203131. The next prime is 12421203161. The reversal of 12421203134 is 43130212421.

12421203134 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12421203131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11387 + ... + 158025.

It is an arithmetic number, because the mean of its divisors is an integer number (1194052860).

Almost surely, 2^12421203134 is an apocalyptic number.

12421203134 is a deficient number, since it is larger than the sum of its proper divisors (6683642626).

12421203134 is a wasteful number, since it uses less digits than its factorization.

12421203134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147715.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 12421203134 its reverse (43130212421), we get a palindrome (55551415555).

The spelling of 12421203134 in words is "twelve billion, four hundred twenty-one million, two hundred three thousand, one hundred thirty-four".