21022314312323 has 8 divisors (see below), whose sum is σ = 21106096112640. Its totient is φ = 20938695671880.

The previous prime is 21022314312299. The next prime is 21022314312379. The reversal of 21022314312323 is 32321341322012.

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-21022314312323 is a prime.

It is a super-2 number, since 2×21022314312323² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21022314312383) 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, 40531763 + ... + 41047148.

It is an arithmetic number, because the mean of its divisors is an integer number (2638262014080).

Almost surely, 2^{21022314312323} is an apocalyptic number.

21022314312323 is a deficient number, since it is larger than the sum of its proper divisors (83781800317).

21022314312323 is an equidigital number, since it uses as much as digits as its factorization.

21022314312323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81579937.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 21022314312323 its reverse (32321341322012), we get a palindrome (53343655634335).

The spelling of 21022314312323 in words is "twenty-one trillion, twenty-two billion, three hundred fourteen million, three hundred twelve thousand, three hundred twenty-three".