200511120453497 has 4 divisors (see below), whose sum is σ = 229155566232576. Its totient is φ = 171866674674420.

The previous prime is 200511120453407. The next prime is 200511120453509. The reversal of 200511120453497 is 794354021115002.

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 not a de Polignac number, because 200511120453497 - 2¹⁸ = 200511120191353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200511120453407) 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, 14322222889529 + ... + 14322222889542.

It is an arithmetic number, because the mean of its divisors is an integer number (57288891558144).

Almost surely, 2^{200511120453497} is an apocalyptic number.

It is an amenable number.

200511120453497 is a deficient number, since it is larger than the sum of its proper divisors (28644445779079).

200511120453497 is an equidigital number, since it uses as much as digits as its factorization.

200511120453497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28644445779078.

The product of its (nonzero) digits is 302400, while the sum is 44.

Adding to 200511120453497 its reverse (794354021115002), we get a palindrome (994865141568499).

The spelling of 200511120453497 in words is "two hundred trillion, five hundred eleven billion, one hundred twenty million, four hundred fifty-three thousand, four hundred ninety-seven".