10115440243009 has 2 divisors, whose sum is σ = 10115440243010. Its totient is φ = 10115440243008.

The previous prime is 10115440242983. The next prime is 10115440243037. The reversal of 10115440243009 is 90034204451101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7055547187984 + 3059893055025 = 2656228^2 + 1749255^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10115440243009 is a prime.

It is not a weakly prime, because it can be changed into another prime (10115440243049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5057720121504 + 5057720121505.

It is an arithmetic number, because the mean of its divisors is an integer number (5057720121505).

Almost surely, 2^{10115440243009} is an apocalyptic number.

It is an amenable number.

10115440243009 is a deficient number, since it is larger than the sum of its proper divisors (1).

10115440243009 is an equidigital number, since it uses as much as digits as its factorization.

10115440243009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 34.

The spelling of 10115440243009 in words is "ten trillion, one hundred fifteen billion, four hundred forty million, two hundred forty-three thousand, nine".