21232334043 has 12 divisors (see below), whose sum is σ = 31089050200. Its totient is φ = 13960986336.

The previous prime is 21232334033. The next prime is 21232334047. The reversal of 21232334043 is 34043323212.

21232334043 is a `hidden beast` number, since 2 + 1 + 23 + 233 + 404 + 3 = 666.

It is not a de Polignac number, because 21232334043 - 2⁴ = 21232334027 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21232333998 and 21232334016.

It is not an unprimeable number, because it can be changed into a prime (21232334047) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16157893 + ... + 16159206.

Almost surely, 2^21232334043 is an apocalyptic number.

21232334043 is a deficient number, since it is larger than the sum of its proper divisors (9856716157).

21232334043 is a wasteful number, since it uses less digits than its factorization.

21232334043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32317178 (or 32317175 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 21232334043 its reverse (34043323212), we get a palindrome (55275657255).

The spelling of 21232334043 in words is "twenty-one billion, two hundred thirty-two million, three hundred thirty-four thousand, forty-three".