43213631234 has 4 divisors (see below), whose sum is σ = 64820446854. Its totient is φ = 21606815616.

The previous prime is 43213631221. The next prime is 43213631239.

43213631234 is nontrivially palindromic in base 10.

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., 43174606225 + 39025009 = 207785^2 + 6247^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 43213631234.

It is not an unprimeable number, because it can be changed into a prime (43213631239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10803407807 + ... + 10803407810.

Almost surely, 2^43213631234 is an apocalyptic number.

43213631234 is a deficient number, since it is larger than the sum of its proper divisors (21606815620).

43213631234 is a wasteful number, since it uses less digits than its factorization.

43213631234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21606815619.

The product of its digits is 31104, while the sum is 32.

The spelling of 43213631234 in words is "forty-three billion, two hundred thirteen million, six hundred thirty-one thousand, two hundred thirty-four".