12431422413421 has 4 divisors (see below), whose sum is σ = 13561551723744. Its totient is φ = 11301293103100.

The previous prime is 12431422413413. The next prime is 12431422413427.

12431422413421 is nontrivially palindromic in base 10.

12431422413421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12431422413421 - 2³ = 12431422413413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12431422413427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 565064655145 + ... + 565064655166.

It is an arithmetic number, because the mean of its divisors is an integer number (3390387930936).

Almost surely, 2^{12431422413421} is an apocalyptic number.

12431422413421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12431422413421 is a deficient number, since it is larger than the sum of its proper divisors (1130129310323).

12431422413421 is a wasteful number, since it uses less digits than its factorization.

12431422413421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1130129310322.

The product of its digits is 36864, while the sum is 34.

It can be divided in two parts, 1243142 and 2413421, that added together give a palindrome (3656563).

The spelling of 12431422413421 in words is "twelve trillion, four hundred thirty-one billion, four hundred twenty-two million, four hundred thirteen thousand, four hundred twenty-one".