43232123434 has 4 divisors (see below), whose sum is σ = 64848185154. Its totient is φ = 21616061716.

The previous prime is 43232123387. The next prime is 43232123471. The reversal of 43232123434 is 43432123234.

It is a happy number.

43232123434 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

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., 29730380625 + 13501742809 = 172425^2 + 116197^2 .

It is a super-2 number, since 2×43232123434² (a number of 22 digits) contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 43232123396 and 43232123405.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10808030857 + ... + 10808030860.

Almost surely, 2^43232123434 is an apocalyptic number.

43232123434 is a deficient number, since it is larger than the sum of its proper divisors (21616061720).

43232123434 is a wasteful number, since it uses less digits than its factorization.

43232123434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21616061719.

The product of its digits is 41472, while the sum is 31.

Adding to 43232123434 its reverse (43432123234), we get a palindrome (86664246668).

The spelling of 43232123434 in words is "forty-three billion, two hundred thirty-two million, one hundred twenty-three thousand, four hundred thirty-four".