21320033322023 has 16 divisors (see below), whose sum is σ = 21567397875744. Its totient is φ = 21073241180160.

The previous prime is 21320033322011. The next prime is 21320033322047. The reversal of 21320033322023 is 32022333002312.

It is a cyclic number.

It is not a de Polignac number, because 21320033322023 - 2⁸ = 21320033321767 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21320033321983 and 21320033322001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21320033522023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 478144736 + ... + 478189322.

It is an arithmetic number, because the mean of its divisors is an integer number (1347962367234).

Almost surely, 2^{21320033322023} is an apocalyptic number.

21320033322023 is a deficient number, since it is larger than the sum of its proper divisors (247364553721).

21320033322023 is an equidigital number, since it uses as much as digits as its factorization.

21320033322023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50882.

The product of its (nonzero) digits is 7776, while the sum is 26.

Adding to 21320033322023 its reverse (32022333002312), we get a palindrome (53342366324335).

The spelling of 21320033322023 in words is "twenty-one trillion, three hundred twenty billion, thirty-three million, three hundred twenty-two thousand, twenty-three".