203124202117 has 2 divisors, whose sum is σ = 203124202118. Its totient is φ = 203124202116.

The previous prime is 203124202111. The next prime is 203124202121. The reversal of 203124202117 is 711202421302.

203124202117 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 152537894721 + 50586307396 = 390561^2 + 224914^2 .

It is a cyclic number.

It is not a de Polignac number, because 203124202117 - 2¹⁵ = 203124169349 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 203124202091 and 203124202100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203124202111) 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 as a sum of consecutive naturals, namely, 101562101058 + 101562101059.

It is an arithmetic number, because the mean of its divisors is an integer number (101562101059).

Almost surely, 2^203124202117 is an apocalyptic number.

It is an amenable number.

203124202117 is a deficient number, since it is larger than the sum of its proper divisors (1).

203124202117 is an equidigital number, since it uses as much as digits as its factorization.

203124202117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 25.

Adding to 203124202117 its reverse (711202421302), we get a palindrome (914326623419).

The spelling of 203124202117 in words is "two hundred three billion, one hundred twenty-four million, two hundred two thousand, one hundred seventeen".