21113214663323 has 16 divisors (see below), whose sum is σ = 21902584467456. Its totient is φ = 20337225840960.

The previous prime is 21113214663313. The next prime is 21113214663329. The reversal of 21113214663323 is 32336641231112.

It is not a de Polignac number, because 21113214663323 - 2⁸ = 21113214663067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21113214663329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3427286 + ... + 7346612.

It is an arithmetic number, because the mean of its divisors is an integer number (1368911529216).

Almost surely, 2^{21113214663323} is an apocalyptic number.

21113214663323 is a deficient number, since it is larger than the sum of its proper divisors (789369804133).

21113214663323 is a wasteful number, since it uses less digits than its factorization.

21113214663323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3921034.

The product of its digits is 93312, while the sum is 38.

Adding to 21113214663323 its reverse (32336641231112), we get a palindrome (53449855894435).

The spelling of 21113214663323 in words is "twenty-one trillion, one hundred thirteen billion, two hundred fourteen million, six hundred sixty-three thousand, three hundred twenty-three".