21341233432 has 16 divisors (see below), whose sum is σ = 40105969200. Its totient is φ = 10646308320.

The previous prime is 21341233391. The next prime is 21341233457. The reversal of 21341233432 is 23433214312.

It is a happy number.

It is a super-2 number, since 2×21341233432² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21341233432.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3034819 + ... + 3041842.

It is an arithmetic number, because the mean of its divisors is an integer number (2506623075).

Almost surely, 2^21341233432 is an apocalyptic number.

It is an amenable number.

21341233432 is a deficient number, since it is larger than the sum of its proper divisors (18764735768).

21341233432 is a wasteful number, since it uses less digits than its factorization.

21341233432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6077106 (or 6077102 counting only the distinct ones).

The product of its digits is 10368, while the sum is 28.

Adding to 21341233432 its reverse (23433214312), we get a palindrome (44774447744).

The spelling of 21341233432 in words is "twenty-one billion, three hundred forty-one million, two hundred thirty-three thousand, four hundred thirty-two".