1131032213 has 2 divisors, whose sum is σ = 1131032214. Its totient is φ = 1131032212.

The previous prime is 1131032207. The next prime is 1131032237. The reversal of 1131032213 is 3122301311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 877522129 + 253510084 = 29623^2 + 15922^2 .

It is a cyclic number.

It is not a de Polignac number, because 1131032213 - 2⁴ = 1131032197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1131032191 and 1131032200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1131032263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565516106 + 565516107.

It is an arithmetic number, because the mean of its divisors is an integer number (565516107).

Almost surely, 2^1131032213 is an apocalyptic number.

It is an amenable number.

1131032213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131032213 is an equidigital number, since it uses as much as digits as its factorization.

1131032213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1131032213 is about 33630.8223658001. The cubic root of 1131032213 is about 1041.8974891264.

Adding to 1131032213 its reverse (3122301311), we get a palindrome (4253333524).

The spelling of 1131032213 in words is "one billion, one hundred thirty-one million, thirty-two thousand, two hundred thirteen".