200411421523 has 4 divisors (see below), whose sum is σ = 202948275040. Its totient is φ = 197874568008.

The previous prime is 200411421521. The next prime is 200411421527. The reversal of 200411421523 is 325124114002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 200411421523 - 2¹ = 200411421521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200411421521) 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, 1268426640 + ... + 1268426797.

It is an arithmetic number, because the mean of its divisors is an integer number (50737068760).

Almost surely, 2^200411421523 is an apocalyptic number.

200411421523 is a deficient number, since it is larger than the sum of its proper divisors (2536853517).

200411421523 is an equidigital number, since it uses as much as digits as its factorization.

200411421523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2536853516.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 200411421523 its reverse (325124114002), we get a palindrome (525535535525).

The spelling of 200411421523 in words is "two hundred billion, four hundred eleven million, four hundred twenty-one thousand, five hundred twenty-three".