21223103020323 has 8 divisors (see below), whose sum is σ = 28306572498000. Its totient is φ = 14144184444768.

The previous prime is 21223103020319. The next prime is 21223103020387. The reversal of 21223103020323 is 32302030132212.

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

It is not a de Polignac number, because 21223103020323 - 2² = 21223103020319 is a prime.

It is a super-2 number, since 2×21223103020323² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21223103020293 and 21223103020302.

It is not an unprimeable number, because it can be changed into a prime (21223173020323) 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, 1137714648 + ... + 1137733301.

It is an arithmetic number, because the mean of its divisors is an integer number (3538321562250).

Almost surely, 2^{21223103020323} is an apocalyptic number.

21223103020323 is a deficient number, since it is larger than the sum of its proper divisors (7083469477677).

21223103020323 is a wasteful number, since it uses less digits than its factorization.

21223103020323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2275451061.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 21223103020323 its reverse (32302030132212), we get a palindrome (53525133152535).

The spelling of 21223103020323 in words is "twenty-one trillion, two hundred twenty-three billion, one hundred three million, twenty thousand, three hundred twenty-three".