21323213002023 has 64 divisors (see below), whose sum is σ = 29397184008192. Its totient is φ = 13739595909120.

The previous prime is 21323213001977. The next prime is 21323213002057. The reversal of 21323213002023 is 32020031232312.

It is not a de Polignac number, because 21323213002023 - 2¹² = 21323212997927 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21323213001984 and 21323213002002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21323213006023) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9323659986 + ... + 9323662272.

It is an arithmetic number, because the mean of its divisors is an integer number (459331000128).

Almost surely, 2^{21323213002023} is an apocalyptic number.

21323213002023 is a deficient number, since it is larger than the sum of its proper divisors (8073971006169).

21323213002023 is a wasteful number, since it uses less digits than its factorization.

21323213002023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4064.

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

Adding to 21323213002023 its reverse (32020031232312), we get a palindrome (53343244234335).

The spelling of 21323213002023 in words is "twenty-one trillion, three hundred twenty-three billion, two hundred thirteen million, two thousand, twenty-three".