200323111021 has 24 divisors (see below), whose sum is σ = 233295491520. Its totient is φ = 171286769280.

The previous prime is 200323111003. The next prime is 200323111033. The reversal of 200323111021 is 120111323002.

It is not a de Polignac number, because 200323111021 - 2¹⁹ = 200322586733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200323110986 and 200323111004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200323111081) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3175630 + ... + 3238096.

It is an arithmetic number, because the mean of its divisors is an integer number (9720645480).

Almost surely, 2^200323111021 is an apocalyptic number.

It is an amenable number.

200323111021 is a deficient number, since it is larger than the sum of its proper divisors (32972380499).

200323111021 is a wasteful number, since it uses less digits than its factorization.

200323111021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64065 (or 64054 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 200323111021 its reverse (120111323002), we get a palindrome (320434434023).

The spelling of 200323111021 in words is "two hundred billion, three hundred twenty-three million, one hundred eleven thousand, twenty-one".