10217131 has 2 divisors, whose sum is σ = 10217132. Its totient is φ = 10217130.

The previous prime is 10217087. The next prime is 10217161. The reversal of 10217131 is 13171201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10217131 is a prime.

It is a super-2 number, since 2×10217131² = 208779531742322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10217161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5108565 + 5108566.

It is an arithmetic number, because the mean of its divisors is an integer number (5108566).

Almost surely, 2^10217131 is an apocalyptic number.

10217131 is a deficient number, since it is larger than the sum of its proper divisors (1).

10217131 is an equidigital number, since it uses as much as digits as its factorization.

10217131 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.

The square root of 10217131 is about 3196.4247214662. The cubic root of 10217131 is about 216.9916325428.

Adding to 10217131 its reverse (13171201), we get a palindrome (23388332).

The spelling of 10217131 in words is "ten million, two hundred seventeen thousand, one hundred thirty-one".