43423121422 has 4 divisors (see below), whose sum is σ = 65134682136. Its totient is φ = 21711560710.

The previous prime is 43423121393. The next prime is 43423121453. The reversal of 43423121422 is 22412132434.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10855780354 + ... + 10855780357.

It is an arithmetic number, because the mean of its divisors is an integer number (16283670534).

Almost surely, 2^43423121422 is an apocalyptic number.

43423121422 is a deficient number, since it is larger than the sum of its proper divisors (21711560714).

43423121422 is a wasteful number, since it uses less digits than its factorization.

43423121422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21711560713.

The product of its digits is 9216, while the sum is 28.

Adding to 43423121422 its reverse (22412132434), we get a palindrome (65835253856).

The spelling of 43423121422 in words is "forty-three billion, four hundred twenty-three million, one hundred twenty-one thousand, four hundred twenty-two".