21220010303323 has 4 divisors (see below), whose sum is σ = 22852318788208. Its totient is φ = 19587701818440.

The previous prime is 21220010303309. The next prime is 21220010303339. The reversal of 21220010303323 is 32330301002212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21220010303323 - 2³³ = 21211420368731 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21220010303294 and 21220010303303.

It is not an unprimeable number, because it can be changed into a prime (21220010303353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 816154242423 + ... + 816154242448.

It is an arithmetic number, because the mean of its divisors is an integer number (5713079697052).

Almost surely, 2^{21220010303323} is an apocalyptic number.

21220010303323 is a deficient number, since it is larger than the sum of its proper divisors (1632308484885).

21220010303323 is a wasteful number, since it uses less digits than its factorization.

21220010303323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1632308484884.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 21220010303323 its reverse (32330301002212), we get a palindrome (53550311305535).

The spelling of 21220010303323 in words is "twenty-one trillion, two hundred twenty billion, ten million, three hundred three thousand, three hundred twenty-three".