21124232339 has 8 divisors (see below), whose sum is σ = 24730808928. Its totient is φ = 17664863040.

The previous prime is 21124232299. The next prime is 21124232341. The reversal of 21124232339 is 93323242112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21124232339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21124232359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36801512 + ... + 36802085.

It is an arithmetic number, because the mean of its divisors is an integer number (3091351116).

Almost surely, 2^21124232339 is an apocalyptic number.

21124232339 is a deficient number, since it is larger than the sum of its proper divisors (3606576589).

21124232339 is an equidigital number, since it uses as much as digits as its factorization.

21124232339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73603645.

The product of its digits is 15552, while the sum is 32.

The spelling of 21124232339 in words is "twenty-one billion, one hundred twenty-four million, two hundred thirty-two thousand, three hundred thirty-nine".