21323510041 has 8 divisors (see below), whose sum is σ = 21783435264. Its totient is φ = 20863844640.

The previous prime is 21323510029. The next prime is 21323510081. The reversal of 21323510041 is 14001532312.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 21323510041 - 2⁵ = 21323510009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21323509994 and 21323510021.

It is not an unprimeable number, because it can be changed into a prime (21323510011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105736 + ... + 232006.

It is an arithmetic number, because the mean of its divisors is an integer number (2722929408).

Almost surely, 2^21323510041 is an apocalyptic number.

It is an amenable number.

21323510041 is a deficient number, since it is larger than the sum of its proper divisors (459925223).

21323510041 is a wasteful number, since it uses less digits than its factorization.

21323510041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129911.

The product of its (nonzero) digits is 720, while the sum is 22.

The spelling of 21323510041 in words is "twenty-one billion, three hundred twenty-three million, five hundred ten thousand, forty-one".