134424333413221 has 4 divisors (see below), whose sum is σ = 136043903695392. Its totient is φ = 132804763131052.

The previous prime is 134424333413039. The next prime is 134424333413243. The reversal of 134424333413221 is 122314333424431.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134424333413221 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 (134424333413261) 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, 809785140961 + ... + 809785141126.

It is an arithmetic number, because the mean of its divisors is an integer number (34010975923848).

Almost surely, 2^{134424333413221} is an apocalyptic number.

It is an amenable number.

134424333413221 is a deficient number, since it is larger than the sum of its proper divisors (1619570282171).

134424333413221 is an equidigital number, since it uses as much as digits as its factorization.

134424333413221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1619570282170.

The product of its digits is 497664, while the sum is 40.

Adding to 134424333413221 its reverse (122314333424431), we get a palindrome (256738666837652).

The spelling of 134424333413221 in words is "one hundred thirty-four trillion, four hundred twenty-four billion, three hundred thirty-three million, four hundred thirteen thousand, two hundred twenty-one".