1310031109 has 2 divisors, whose sum is σ = 1310031110. Its totient is φ = 1310031108.

The previous prime is 1310031097. The next prime is 1310031161. The reversal of 1310031109 is 9011300131.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1080962884 + 229068225 = 32878^2 + 15135^2 .

It is a cyclic number.

It is not a de Polignac number, because 1310031109 - 2²³ = 1301642501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1310031199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655015554 + 655015555.

It is an arithmetic number, because the mean of its divisors is an integer number (655015555).

Almost surely, 2^1310031109 is an apocalyptic number.

It is an amenable number.

1310031109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1310031109 is an equidigital number, since it uses as much as digits as its factorization.

1310031109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81, while the sum is 19.

The square root of 1310031109 is about 36194.3518936311. The cubic root of 1310031109 is about 1094.1928426119.

The spelling of 1310031109 in words is "one billion, three hundred ten million, thirty-one thousand, one hundred nine".