203252616431 has 4 divisors (see below), whose sum is σ = 207087571512. Its totient is φ = 199417661352.

The previous prime is 203252616379. The next prime is 203252616529. The reversal of 203252616431 is 134616252302.

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

It is not a de Polignac number, because 203252616431 - 2¹⁸ = 203252354287 is a prime.

It is a super-2 number, since 2×203252616431² (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 = 203252616391 and 203252616400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203252616731) by changing a digit.

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, 1917477461 + ... + 1917477566.

It is an arithmetic number, because the mean of its divisors is an integer number (51771892878).

Almost surely, 2^203252616431 is an apocalyptic number.

203252616431 is a deficient number, since it is larger than the sum of its proper divisors (3834955081).

203252616431 is an equidigital number, since it uses as much as digits as its factorization.

203252616431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3834955080.

The product of its (nonzero) digits is 51840, while the sum is 35.

Adding to 203252616431 its reverse (134616252302), we get a palindrome (337868868733).

The spelling of 203252616431 in words is "two hundred three billion, two hundred fifty-two million, six hundred sixteen thousand, four hundred thirty-one".