21220103123323 has 8 divisors (see below), whose sum is σ = 22948035566400. Its totient is φ = 19505830225728.

The previous prime is 21220103123299. The next prime is 21220103123341. The reversal of 21220103123323 is 32332130102212.

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 21220103123323 - 2⁹ = 21220103122811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21220103153323) 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, 3414883138 + ... + 3414889351.

It is an arithmetic number, because the mean of its divisors is an integer number (2868504445800).

Almost surely, 2^{21220103123323} is an apocalyptic number.

21220103123323 is a deficient number, since it is larger than the sum of its proper divisors (1727932443077).

21220103123323 is a wasteful number, since it uses less digits than its factorization.

21220103123323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6829772741.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 21220103123323 its reverse (32332130102212), we get a palindrome (53552233225535).

The spelling of 21220103123323 in words is "twenty-one trillion, two hundred twenty billion, one hundred three million, one hundred twenty-three thousand, three hundred twenty-three".