201203021317 has 2 divisors, whose sum is σ = 201203021318. Its totient is φ = 201203021316.

The previous prime is 201203021311. The next prime is 201203021377. The reversal of 201203021317 is 713120302102.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 129750523681 + 71452497636 = 360209^2 + 267306^2 .

It is a cyclic number.

It is not a de Polignac number, because 201203021317 - 2³¹ = 199055537669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201203021311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100601510658 + 100601510659.

It is an arithmetic number, because the mean of its divisors is an integer number (100601510659).

Almost surely, 2^201203021317 is an apocalyptic number.

It is an amenable number.

201203021317 is a deficient number, since it is larger than the sum of its proper divisors (1).

201203021317 is an equidigital number, since it uses as much as digits as its factorization.

201203021317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 22.

Adding to 201203021317 its reverse (713120302102), we get a palindrome (914323323419).

The spelling of 201203021317 in words is "two hundred one billion, two hundred three million, twenty-one thousand, three hundred seventeen".