21321323302023 has 24 divisors (see below), whose sum is σ = 31041029799936. Its totient is φ = 14101809598800.

The previous prime is 21321323302021. The next prime is 21321323302051. The reversal of 21321323302023 is 32020332312312.

21321323302023 is a `hidden beast` number, since 2 + 1 + 32 + 1 + 323 + 302 + 0 + 2 + 3 = 666.

It is not a de Polignac number, because 21321323302023 - 2¹ = 21321323302021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21321323302021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34752858 + ... + 35361048.

It is an arithmetic number, because the mean of its divisors is an integer number (1293376241664).

Almost surely, 2^{21321323302023} is an apocalyptic number.

21321323302023 is a deficient number, since it is larger than the sum of its proper divisors (9719706497913).

21321323302023 is a wasteful number, since it uses less digits than its factorization.

21321323302023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638995 (or 638992 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

Adding to 21321323302023 its reverse (32020332312312), we get a palindrome (53341655614335).

The spelling of 21321323302023 in words is "twenty-one trillion, three hundred twenty-one billion, three hundred twenty-three million, three hundred two thousand, twenty-three".