134213021443 has 4 divisors (see below), whose sum is σ = 134214476728. Its totient is φ = 134211566160.

The previous prime is 134213021431. The next prime is 134213021461. The reversal of 134213021443 is 344120312431.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 134213021443 - 2²¹ = 134210924291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134213021143) 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, 579213 + ... + 777118.

It is an arithmetic number, because the mean of its divisors is an integer number (33553619182).

Almost surely, 2^134213021443 is an apocalyptic number.

134213021443 is a deficient number, since it is larger than the sum of its proper divisors (1455285).

134213021443 is an equidigital number, since it uses as much as digits as its factorization.

134213021443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1455284.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 134213021443 its reverse (344120312431), we get a palindrome (478333333874).

The spelling of 134213021443 in words is "one hundred thirty-four billion, two hundred thirteen million, twenty-one thousand, four hundred forty-three".