23503533040205 has 4 divisors (see below), whose sum is σ = 28204239648252. Its totient is φ = 18802826432160.

The previous prime is 23503533040199. The next prime is 23503533040213. The reversal of 23503533040205 is 50204033530532.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3728062010761 + 19775471029444 = 1930819^2 + 4446962^2 .

It is not a de Polignac number, because 23503533040205 - 2²⁸ = 23503264604749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2350353304016 + ... + 2350353304025.

It is an arithmetic number, because the mean of its divisors is an integer number (7051059912063).

Almost surely, 2^{23503533040205} is an apocalyptic number.

It is an amenable number.

23503533040205 is a deficient number, since it is larger than the sum of its proper divisors (4700706608047).

23503533040205 is an equidigital number, since it uses as much as digits as its factorization.

23503533040205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4700706608046.

The product of its (nonzero) digits is 162000, while the sum is 35.

Adding to 23503533040205 its reverse (50204033530532), we get a palindrome (73707566570737).

The spelling of 23503533040205 in words is "twenty-three trillion, five hundred three billion, five hundred thirty-three million, forty thousand, two hundred five".