1013193109 has 2 divisors, whose sum is σ = 1013193110. Its totient is φ = 1013193108.

The previous prime is 1013193067. The next prime is 1013193113. The reversal of 1013193109 is 9013913101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 666414225 + 346778884 = 25815^2 + 18622^2 .

It is a cyclic number.

It is not a de Polignac number, because 1013193109 - 2⁹ = 1013192597 is a prime.

It is a super-2 number, since 2×1013193109² = 2053120552250171762, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1013193199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506596554 + 506596555.

It is an arithmetic number, because the mean of its divisors is an integer number (506596555).

Almost surely, 2^1013193109 is an apocalyptic number.

It is an amenable number.

1013193109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1013193109 is an equidigital number, since it uses as much as digits as its factorization.

1013193109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 729, while the sum is 28.

The square root of 1013193109 is about 31830.6944473412. The cubic root of 1013193109 is about 1004.3785037246.

The spelling of 1013193109 in words is "one billion, thirteen million, one hundred ninety-three thousand, one hundred nine".