42231423434 has 4 divisors (see below), whose sum is σ = 63347135154. Its totient is φ = 21115711716.

The previous prime is 42231423419. The next prime is 42231423467. The reversal of 42231423434 is 43432413224.

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

It can be written as a sum of positive squares in only one way, i.e., 41064996025 + 1166427409 = 202645^2 + 34153^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42231423434.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10557855857 + ... + 10557855860.

Almost surely, 2^42231423434 is an apocalyptic number.

42231423434 is a deficient number, since it is larger than the sum of its proper divisors (21115711720).

42231423434 is a wasteful number, since it uses less digits than its factorization.

42231423434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21115711719.

The product of its digits is 55296, while the sum is 32.

Adding to 42231423434 its reverse (43432413224), we get a palindrome (85663836658).

The spelling of 42231423434 in words is "forty-two billion, two hundred thirty-one million, four hundred twenty-three thousand, four hundred thirty-four".