1030319909 has 2 divisors, whose sum is σ = 1030319910. Its totient is φ = 1030319908.

The previous prime is 1030319881. The next prime is 1030319911. The reversal of 1030319909 is 9099130301.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 699443809 + 330876100 = 26447^2 + 18190^2 .

It is a cyclic number.

It is not a de Polignac number, because 1030319909 - 2²⁴ = 1013542693 is a prime.

It is a super-2 number, since 2×1030319909² = 2123118229763536562, which contains 22 as substring.

Together with 1030319911, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1030319959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515159954 + 515159955.

It is an arithmetic number, because the mean of its divisors is an integer number (515159955).

Almost surely, 2^1030319909 is an apocalyptic number.

It is an amenable number.

1030319909 is a deficient number, since it is larger than the sum of its proper divisors (1).

1030319909 is an equidigital number, since it uses as much as digits as its factorization.

1030319909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6561, while the sum is 35.

The square root of 1030319909 is about 32098.5966827212. The cubic root of 1030319909 is about 1010.0061787682.

The spelling of 1030319909 in words is "one billion, thirty million, three hundred nineteen thousand, nine hundred nine".