200311112321 has 4 divisors (see below), whose sum is σ = 201752199600. Its totient is φ = 198870025044.

The previous prime is 200311112317. The next prime is 200311112329. The reversal of 200311112321 is 123211113002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 123211113002 = 2 ⋅61605556501.

It is a cyclic number.

It is not a de Polignac number, because 200311112321 - 2² = 200311112317 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 200311112321.

It is not an unprimeable number, because it can be changed into a prime (200311112329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 720543431 + ... + 720543708.

It is an arithmetic number, because the mean of its divisors is an integer number (50438049900).

Almost surely, 2^200311112321 is an apocalyptic number.

It is an amenable number.

200311112321 is a deficient number, since it is larger than the sum of its proper divisors (1441087279).

200311112321 is a wasteful number, since it uses less digits than its factorization.

200311112321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1441087278.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 200311112321 its reverse (123211113002), we get a palindrome (323522225323).

The spelling of 200311112321 in words is "two hundred billion, three hundred eleven million, one hundred twelve thousand, three hundred twenty-one".