21323203003323 has 96 divisors (see below), whose sum is σ = 35770145576256. Its totient is φ = 12123564171264.

The previous prime is 21323203003321. The next prime is 21323203003337. The reversal of 21323203003323 is 32330030232312.

21323203003323 is a `hidden beast` number, since 2 + 1 + 3 + 2 + 3 + 20 + 300 + 332 + 3 = 666.

It is not a de Polignac number, because 21323203003323 - 2¹ = 21323203003321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21323203003321) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 25507311 + ... + 26330007.

It is an arithmetic number, because the mean of its divisors is an integer number (372605683086).

Almost surely, 2^{21323203003323} is an apocalyptic number.

21323203003323 is a deficient number, since it is larger than the sum of its proper divisors (14446942572933).

21323203003323 is a wasteful number, since it uses less digits than its factorization.

21323203003323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822973 (or 822970 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 27.

Adding to 21323203003323 its reverse (32330030232312), we get a palindrome (53653233235635).

The spelling of 21323203003323 in words is "twenty-one trillion, three hundred twenty-three billion, two hundred three million, three thousand, three hundred twenty-three".