10131232217 has 2 divisors, whose sum is σ = 10131232218. Its totient is φ = 10131232216.

The previous prime is 10131232213. The next prime is 10131232249. The reversal of 10131232217 is 71223213101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5428152976 + 4703079241 = 73676^2 + 68579^2 .

It is a cyclic number.

It is not a de Polignac number, because 10131232217 - 2² = 10131232213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10131232192 and 10131232201.

It is not a weakly prime, because it can be changed into another prime (10131232213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5065616108 + 5065616109.

It is an arithmetic number, because the mean of its divisors is an integer number (5065616109).

Almost surely, 2^10131232217 is an apocalyptic number.

It is an amenable number.

10131232217 is a deficient number, since it is larger than the sum of its proper divisors (1).

10131232217 is an equidigital number, since it uses as much as digits as its factorization.

10131232217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 23.

Adding to 10131232217 its reverse (71223213101), we get a palindrome (81354445318).

The spelling of 10131232217 in words is "ten billion, one hundred thirty-one million, two hundred thirty-two thousand, two hundred seventeen".