200131221133 has 4 divisors (see below), whose sum is σ = 206587067008. Its totient is φ = 193675375260.

The previous prime is 200131221127. The next prime is 200131221167. The reversal of 200131221133 is 331122131002.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200131221133 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 200131221133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200131291133) 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, 3227922891 + ... + 3227922952.

It is an arithmetic number, because the mean of its divisors is an integer number (51646766752).

Almost surely, 2^200131221133 is an apocalyptic number.

It is an amenable number.

200131221133 is a deficient number, since it is larger than the sum of its proper divisors (6455845875).

200131221133 is an equidigital number, since it uses as much as digits as its factorization.

200131221133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6455845874.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 200131221133 its reverse (331122131002), we get a palindrome (531253352135).

The spelling of 200131221133 in words is "two hundred billion, one hundred thirty-one million, two hundred twenty-one thousand, one hundred thirty-three".