203600561231 has 4 divisors (see below), whose sum is σ = 203602897200. Its totient is φ = 203598225264.

The previous prime is 203600561207. The next prime is 203600561257. The reversal of 203600561231 is 132165006302.

203600561231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203600561231 is a prime.

It is a super-2 number, since 2×203600561231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203600561194 and 203600561203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203600567231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1031966 + ... + 1213323.

It is an arithmetic number, because the mean of its divisors is an integer number (50900724300).

Almost surely, 2^203600561231 is an apocalyptic number.

203600561231 is a deficient number, since it is larger than the sum of its proper divisors (2335969).

203600561231 is an equidigital number, since it uses as much as digits as its factorization.

203600561231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2335968.

The product of its (nonzero) digits is 6480, while the sum is 29.

Adding to 203600561231 its reverse (132165006302), we get a palindrome (335765567533).

The spelling of 203600561231 in words is "two hundred three billion, six hundred million, five hundred sixty-one thousand, two hundred thirty-one".