1131130213 has 2 divisors, whose sum is σ = 1131130214. Its totient is φ = 1131130212.

The previous prime is 1131130171. The next prime is 1131130223. The reversal of 1131130213 is 3120311311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 658589569 + 472540644 = 25663^2 + 21738^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1131130213 is a prime.

It is a super-2 number, since 2×1131130213² = 2558911117522850738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1131130223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565565106 + 565565107.

It is an arithmetic number, because the mean of its divisors is an integer number (565565107).

Almost surely, 2^1131130213 is an apocalyptic number.

It is an amenable number.

1131130213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131130213 is an equidigital number, since it uses as much as digits as its factorization.

1131130213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1131130213 is about 33632.2793310236. The cubic root of 1131130213 is about 1041.9275805196.

Adding to 1131130213 its reverse (3120311311), we get a palindrome (4251441524).

The spelling of 1131130213 in words is "one billion, one hundred thirty-one million, one hundred thirty thousand, two hundred thirteen".