21010133203023 has 8 divisors (see below), whose sum is σ = 28014189905200. Its totient is φ = 14006415984768.

The previous prime is 21010133202997. The next prime is 21010133203057. The reversal of 21010133203023 is 32030233101012.

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

It is not a de Polignac number, because 21010133203023 - 2⁸ = 21010133202767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21010133203093) 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, 84726538 + ... + 84974151.

It is an arithmetic number, because the mean of its divisors is an integer number (3501773738150).

Almost surely, 2^{21010133203023} is an apocalyptic number.

21010133203023 is a deficient number, since it is larger than the sum of its proper divisors (7004056702177).

21010133203023 is a wasteful number, since it uses less digits than its factorization.

21010133203023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169741961.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 21010133203023 its reverse (32030233101012), we get a palindrome (53040366304035).

The spelling of 21010133203023 in words is "twenty-one trillion, ten billion, one hundred thirty-three million, two hundred three thousand, twenty-three".