203124442313 has 12 divisors (see below), whose sum is σ = 220085981388. Its totient is φ = 187384691520.

The previous prime is 203124442307. The next prime is 203124442361. The reversal of 203124442313 is 313244421302.

It can be written as a sum of positive squares in 6 ways, for example, as 98518771129 + 104605671184 = 313877^2 + 323428^2 .

It is not a de Polignac number, because 203124442313 - 2¹⁸ = 203124180169 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (203124442303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90458 + ... + 643763.

It is an arithmetic number, because the mean of its divisors is an integer number (18340498449).

Almost surely, 2^203124442313 is an apocalyptic number.

It is an amenable number.

203124442313 is a deficient number, since it is larger than the sum of its proper divisors (16961539075).

203124442313 is a wasteful number, since it uses less digits than its factorization.

203124442313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735884 (or 735871 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 203124442313 its reverse (313244421302), we get a palindrome (516368863615).

The spelling of 203124442313 in words is "two hundred three billion, one hundred twenty-four million, four hundred forty-two thousand, three hundred thirteen".