200311120021 has 16 divisors (see below), whose sum is σ = 203333034240. Its totient is φ = 197309952000.

The previous prime is 200311120019. The next prime is 200311120049. The reversal of 200311120021 is 120021113002.

It is a cyclic number.

It is not a de Polignac number, because 200311120021 - 2¹ = 200311120019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200311119983 and 200311120010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200311120721) 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, 49105860 + ... + 49109938.

It is an arithmetic number, because the mean of its divisors is an integer number (12708314640).

Almost surely, 2^200311120021 is an apocalyptic number.

It is an amenable number.

200311120021 is a deficient number, since it is larger than the sum of its proper divisors (3021914219).

200311120021 is a wasteful number, since it uses less digits than its factorization.

200311120021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6444.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 200311120021 its reverse (120021113002), we get a palindrome (320332233023).

The spelling of 200311120021 in words is "two hundred billion, three hundred eleven million, one hundred twenty thousand, twenty-one".