200313343121 has 4 divisors (see below), whose sum is σ = 200314238832. Its totient is φ = 200312447412.

The previous prime is 200313343103. The next prime is 200313343129. The reversal of 200313343121 is 121343313002.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200313343121 is a prime.

It is a super-2 number, since 2×200313343121² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200313343129) 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, 199706 + ... + 663708.

It is an arithmetic number, because the mean of its divisors is an integer number (50078559708).

Almost surely, 2^200313343121 is an apocalyptic number.

It is an amenable number.

200313343121 is a deficient number, since it is larger than the sum of its proper divisors (895711).

200313343121 is an equidigital number, since it uses as much as digits as its factorization.

200313343121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895710.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 200313343121 its reverse (121343313002), we get a palindrome (321656656123).

The spelling of 200313343121 in words is "two hundred billion, three hundred thirteen million, three hundred forty-three thousand, one hundred twenty-one".