202124317 has 2 divisors, whose sum is σ = 202124318. Its totient is φ = 202124316.

The previous prime is 202124297. The next prime is 202124341. The reversal of 202124317 is 713421202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 201242596 + 881721 = 14186^2 + 939^2 .

It is a cyclic number.

It is not a de Polignac number, because 202124317 - 2¹¹ = 202122269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202124347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101062158 + 101062159.

It is an arithmetic number, because the mean of its divisors is an integer number (101062159).

Almost surely, 2^202124317 is an apocalyptic number.

It is an amenable number.

202124317 is a deficient number, since it is larger than the sum of its proper divisors (1).

202124317 is an equidigital number, since it uses as much as digits as its factorization.

202124317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 202124317 is about 14217.0431876674. The cubic root of 202124317 is about 586.8667734143.

Adding to 202124317 its reverse (713421202), we get a palindrome (915545519).

The spelling of 202124317 in words is "two hundred two million, one hundred twenty-four thousand, three hundred seventeen".