1031330213 has 2 divisors, whose sum is σ = 1031330214. Its totient is φ = 1031330212.

The previous prime is 1031330191. The next prime is 1031330221. The reversal of 1031330213 is 3120331301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 994582369 + 36747844 = 31537^2 + 6062^2 .

It is a cyclic number.

It is not a de Polignac number, because 1031330213 - 2⁶ = 1031330149 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1031330191 and 1031330200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1031330243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515665106 + 515665107.

It is an arithmetic number, because the mean of its divisors is an integer number (515665107).

Almost surely, 2^1031330213 is an apocalyptic number.

It is an amenable number.

1031330213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031330213 is an equidigital number, since it uses as much as digits as its factorization.

1031330213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 1031330213 is about 32114.3303370941. The cubic root of 1031330213 is about 1010.3361992227.

Adding to 1031330213 its reverse (3120331301), we get a palindrome (4151661514).

The spelling of 1031330213 in words is "one billion, thirty-one million, three hundred thirty thousand, two hundred thirteen".