10000317121 has 2 divisors, whose sum is σ = 10000317122. Its totient is φ = 10000317120.

The previous prime is 10000317113. The next prime is 10000317199. The reversal of 10000317121 is 12171300001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9518734096 + 481583025 = 97564^2 + 21945^2 .

It is a cyclic number.

It is not a de Polignac number, because 10000317121 - 2³ = 10000317113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10000317095 and 10000317104.

It is not a weakly prime, because it can be changed into another prime (10000317221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5000158560 + 5000158561.

It is an arithmetic number, because the mean of its divisors is an integer number (5000158561).

Almost surely, 2^10000317121 is an apocalyptic number.

It is an amenable number.

10000317121 is a deficient number, since it is larger than the sum of its proper divisors (1).

10000317121 is an equidigital number, since it uses as much as digits as its factorization.

10000317121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42, while the sum is 16.

Adding to 10000317121 its reverse (12171300001), we get a palindrome (22171617122).

The spelling of 10000317121 in words is "ten billion, three hundred seventeen thousand, one hundred twenty-one".