13234223421 has 16 divisors (see below), whose sum is σ = 19808387200. Its totient is φ = 8731857024.

The previous prime is 13234223419. The next prime is 13234223459. The reversal of 13234223421 is 12432243231.

13234223421 is a `hidden beast` number, since 1 + 3 + 234 + 2 + 2 + 3 + 421 = 666.

13234223421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13234223421 - 2¹ = 13234223419 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13234223491) 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 15 ways as a sum of consecutive naturals, for example, 2523961 + ... + 2529198.

It is an arithmetic number, because the mean of its divisors is an integer number (1238024200).

Almost surely, 2^13234223421 is an apocalyptic number.

It is an amenable number.

13234223421 is a deficient number, since it is larger than the sum of its proper divisors (6574163779).

13234223421 is an equidigital number, since it uses as much as digits as its factorization.

13234223421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5053265 (or 5053259 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

Adding to 13234223421 its reverse (12432243231), we get a palindrome (25666466652).

The spelling of 13234223421 in words is "thirteen billion, two hundred thirty-four million, two hundred twenty-three thousand, four hundred twenty-one".