21010200212023 has 16 divisors (see below), whose sum is σ = 24269395235616. Its totient is φ = 17975953981440.

The previous prime is 21010200212017. The next prime is 21010200212033. The reversal of 21010200212023 is 32021200201012.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21010200212023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21010200211988 and 21010200212006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21010200212003) 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, 2780215 + ... + 7053367.

It is an arithmetic number, because the mean of its divisors is an integer number (1516837202226).

Almost surely, 2^{21010200212023} is an apocalyptic number.

21010200212023 is a deficient number, since it is larger than the sum of its proper divisors (3259195023593).

21010200212023 is a wasteful number, since it uses less digits than its factorization.

21010200212023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4299474.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 21010200212023 its reverse (32021200201012), we get a palindrome (53031400413035).

The spelling of 21010200212023 in words is "twenty-one trillion, ten billion, two hundred million, two hundred twelve thousand, twenty-three".