31320104201 has 2 divisors, whose sum is σ = 31320104202. Its totient is φ = 31320104200.

The previous prime is 31320104183. The next prime is 31320104209. The reversal of 31320104201 is 10240102313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27481682176 + 3838422025 = 165776^2 + 61955^2 .

It is a cyclic number.

It is not a de Polignac number, because 31320104201 - 2¹⁴ = 31320087817 is a prime.

It is a super-4 number, since 4×31320104201⁴ (a number of 43 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 31320104201.

It is not a weakly prime, because it can be changed into another prime (31320104209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15660052100 + 15660052101.

It is an arithmetic number, because the mean of its divisors is an integer number (15660052101).

Almost surely, 2^31320104201 is an apocalyptic number.

It is an amenable number.

31320104201 is a deficient number, since it is larger than the sum of its proper divisors (1).

31320104201 is an equidigital number, since it uses as much as digits as its factorization.

31320104201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 31320104201 its reverse (10240102313), we get a palindrome (41560206514).

The spelling of 31320104201 in words is "thirty-one billion, three hundred twenty million, one hundred four thousand, two hundred one".