1130030257 has 2 divisors, whose sum is σ = 1130030258. Its totient is φ = 1130030256.

The previous prime is 1130030221. The next prime is 1130030261. The reversal of 1130030257 is 7520300311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 909685921 + 220344336 = 30161^2 + 14844^2 .

It is a cyclic number.

It is not a de Polignac number, because 1130030257 - 2¹⁹ = 1129505969 is a prime.

It is not a weakly prime, because it can be changed into another prime (1130030267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565015128 + 565015129.

It is an arithmetic number, because the mean of its divisors is an integer number (565015129).

Almost surely, 2^1130030257 is an apocalyptic number.

It is an amenable number.

1130030257 is a deficient number, since it is larger than the sum of its proper divisors (1).

1130030257 is an equidigital number, since it uses as much as digits as its factorization.

1130030257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 1130030257 is about 33615.9226706631. The cubic root of 1130030257 is about 1041.5897337131.

Adding to 1130030257 its reverse (7520300311), we get a palindrome (8650330568).

The spelling of 1130030257 in words is "one billion, one hundred thirty million, thirty thousand, two hundred fifty-seven".