21102020232023 has 8 divisors (see below), whose sum is σ = 21156404270496. Its totient is φ = 21047704048800.

The previous prime is 21102020231989. The next prime is 21102020232043. The reversal of 21102020232023 is 32023202020112.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21102020232023 - 2¹² = 21102020227927 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21102020231986 and 21102020232004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21102020232043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16341011 + ... + 17585012.

It is an arithmetic number, because the mean of its divisors is an integer number (2644550533812).

Almost surely, 2^{21102020232023} is an apocalyptic number.

21102020232023 is a deficient number, since it is larger than the sum of its proper divisors (54384038473).

21102020232023 is an equidigital number, since it uses as much as digits as its factorization.

21102020232023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33927625.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 21102020232023 its reverse (32023202020112), we get a palindrome (53125222252135).

The spelling of 21102020232023 in words is "twenty-one trillion, one hundred two billion, twenty million, two hundred thirty-two thousand, twenty-three".