10115642601209 has 4 divisors (see below), whose sum is σ = 10117768187520. Its totient is φ = 10113517014900.

The previous prime is 10115642601203. The next prime is 10115642601307. The reversal of 10115642601209 is 90210624651101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10115642601209 - 2¹⁶ = 10115642535673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10115642601203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1062786017 + ... + 1062795534.

It is an arithmetic number, because the mean of its divisors is an integer number (2529442046880).

Almost surely, 2^{10115642601209} is an apocalyptic number.

It is an amenable number.

10115642601209 is a deficient number, since it is larger than the sum of its proper divisors (2125586311).

10115642601209 is an equidigital number, since it uses as much as digits as its factorization.

10115642601209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2125586310.

The product of its (nonzero) digits is 25920, while the sum is 38.

The spelling of 10115642601209 in words is "ten trillion, one hundred fifteen billion, six hundred forty-two million, six hundred one thousand, two hundred nine".