21335231041321 has 8 divisors (see below), whose sum is σ = 22268405867904. Its totient is φ = 20402519221920.

The previous prime is 21335231041301. The next prime is 21335231041337. The reversal of 21335231041321 is 12314013253312.

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 21335231041321 - 2⁴³ = 12539138019113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21335231041301) 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, 115657620 + ... + 115841941.

It is an arithmetic number, because the mean of its divisors is an integer number (2783550733488).

Almost surely, 2^{21335231041321} is an apocalyptic number.

It is an amenable number.

21335231041321 is a deficient number, since it is larger than the sum of its proper divisors (933174826583).

21335231041321 is a wasteful number, since it uses less digits than its factorization.

21335231041321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231503591.

The product of its (nonzero) digits is 12960, while the sum is 31.

Adding to 21335231041321 its reverse (12314013253312), we get a palindrome (33649244294633).

The spelling of 21335231041321 in words is "twenty-one trillion, three hundred thirty-five billion, two hundred thirty-one million, forty-one thousand, three hundred twenty-one".