12431344313421 has 12 divisors (see below), whose sum is σ = 19588784978880. Its totient is φ = 7534148068680.

The previous prime is 12431344313371. The next prime is 12431344313429.

12431344313421 is a `hidden beast` number, since 1 + 2 + 4 + 313 + 4 + 4 + 313 + 4 + 21 = 666.

12431344313421 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 12431344313421 - 2¹⁸ = 12431344051277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12431344313429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62784567141 + ... + 62784567338.

It is an arithmetic number, because the mean of its divisors is an integer number (1632398748240).

Almost surely, 2^{12431344313421} is an apocalyptic number.

12431344313421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12431344313421 is a deficient number, since it is larger than the sum of its proper divisors (7157440665459).

12431344313421 is a wasteful number, since it uses less digits than its factorization.

12431344313421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125569134496 (or 125569134493 counting only the distinct ones).

The product of its digits is 82944, while the sum is 36.

It can be divided in two parts, 1243134 and 4313421, that added together give a palindrome (5556555).

The spelling of 12431344313421 in words is "twelve trillion, four hundred thirty-one billion, three hundred forty-four million, three hundred thirteen thousand, four hundred twenty-one".