12434321040421 has 8 divisors (see below), whose sum is σ = 14700675121920. Its totient is φ = 10290472585008.

The previous prime is 12434321040419. The next prime is 12434321040431. The reversal of 12434321040421 is 12404012343421.

It is a happy number.

12434321040421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12434321040421 - 2¹ = 12434321040419 is a prime.

It is a super-2 number, since 2×12434321040421² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12434321040431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30626406301 + ... + 30626406706.

It is an arithmetic number, because the mean of its divisors is an integer number (1837584390240).

Almost surely, 2^{12434321040421} is an apocalyptic number.

It is an amenable number.

12434321040421 is a deficient number, since it is larger than the sum of its proper divisors (2266354081499).

12434321040421 is an equidigital number, since it uses as much as digits as its factorization.

12434321040421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61252813043.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 12434321040421 its reverse (12404012343421), we get a palindrome (24838333383842).

The spelling of 12434321040421 in words is "twelve trillion, four hundred thirty-four billion, three hundred twenty-one million, forty thousand, four hundred twenty-one".