21321230033311 has 8 divisors (see below), whose sum is σ = 22975131845120. Its totient is φ = 19669300677792.

The previous prime is 21321230033297. The next prime is 21321230033329. The reversal of 21321230033311 is 11333003212312.

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 21321230033311 - 2³³ = 21312640098719 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21321230033381) 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, 493091616 + ... + 493134853.

It is an arithmetic number, because the mean of its divisors is an integer number (2871891480640).

Almost surely, 2^{21321230033311} is an apocalyptic number.

21321230033311 is a deficient number, since it is larger than the sum of its proper divisors (1653901811809).

21321230033311 is a wasteful number, since it uses less digits than its factorization.

21321230033311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986228145.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 21321230033311 its reverse (11333003212312), we get a palindrome (32654233245623).

The spelling of 21321230033311 in words is "twenty-one trillion, three hundred twenty-one billion, two hundred thirty million, thirty-three thousand, three hundred eleven".