1131010217 has 2 divisors, whose sum is σ = 1131010218. Its totient is φ = 1131010216.

The previous prime is 1131010201. The next prime is 1131010241. The reversal of 1131010217 is 7120101311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 969948736 + 161061481 = 31144^2 + 12691^2 .

It is an emirp because it is prime and its reverse (7120101311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1131010217 - 2⁴ = 1131010201 is a prime.

It is a super-2 number, since 2×1131010217² = 2558368221916774178, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1131010195 and 1131010204.

It is not a weakly prime, because it can be changed into another prime (1131030217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565505108 + 565505109.

It is an arithmetic number, because the mean of its divisors is an integer number (565505109).

Almost surely, 2^1131010217 is an apocalyptic number.

It is an amenable number.

1131010217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131010217 is an equidigital number, since it uses as much as digits as its factorization.

1131010217 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 17.

The square root of 1131010217 is about 33630.4953427689. The cubic root of 1131010217 is about 1041.8907349051.

Adding to 1131010217 its reverse (7120101311), we get a palindrome (8251111528).

The spelling of 1131010217 in words is "one billion, one hundred thirty-one million, ten thousand, two hundred seventeen".