134424121321 has 16 divisors (see below), whose sum is σ = 154610112384. Its totient is φ = 114486107904.

The previous prime is 134424121313. The next prime is 134424121327. The reversal of 134424121321 is 123121424431.

It is a happy number.

It is not a de Polignac number, because 134424121321 - 2³ = 134424121313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 134424121321.

It is not an unprimeable number, because it can be changed into a prime (134424121327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 593946 + ... + 788428.

It is an arithmetic number, because the mean of its divisors is an integer number (9663132024).

Almost surely, 2^134424121321 is an apocalyptic number.

It is an amenable number.

134424121321 is a deficient number, since it is larger than the sum of its proper divisors (20185991063).

134424121321 is a wasteful number, since it uses less digits than its factorization.

134424121321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195120.

The product of its digits is 4608, while the sum is 28.

Adding to 134424121321 its reverse (123121424431), we get a palindrome (257545545752).

The spelling of 134424121321 in words is "one hundred thirty-four billion, four hundred twenty-four million, one hundred twenty-one thousand, three hundred twenty-one".