200445131821 has 8 divisors (see below), whose sum is σ = 218676056544. Its totient is φ = 182215647120.

The previous prime is 200445131749. The next prime is 200445131827. The reversal of 200445131821 is 128131544002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 200445131821 - 2⁷ = 200445131693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200445131827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57930 + ... + 635803.

It is an arithmetic number, because the mean of its divisors is an integer number (27334507068).

Almost surely, 2^200445131821 is an apocalyptic number.

It is an amenable number.

200445131821 is a deficient number, since it is larger than the sum of its proper divisors (18230924723).

200445131821 is a wasteful number, since it uses less digits than its factorization.

200445131821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720011.

The product of its (nonzero) digits is 7680, while the sum is 31.

Adding to 200445131821 its reverse (128131544002), we get a palindrome (328576675823).

The spelling of 200445131821 in words is "two hundred billion, four hundred forty-five million, one hundred thirty-one thousand, eight hundred twenty-one".