11307171106509 has 4 divisors (see below), whose sum is σ = 15076228142016. Its totient is φ = 7538114071004.

The previous prime is 11307171106433. The next prime is 11307171106529. The reversal of 11307171106509 is 90560117170311.

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 11307171106509 - 2²⁵ = 11307137552077 is a prime.

It is a super-3 number, since 3×11307171106509³ (a number of 40 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11307171106529) 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, 1884528517749 + ... + 1884528517754.

It is an arithmetic number, because the mean of its divisors is an integer number (3769057035504).

Almost surely, 2^{11307171106509} is an apocalyptic number.

It is an amenable number.

11307171106509 is a deficient number, since it is larger than the sum of its proper divisors (3769057035507).

11307171106509 is an equidigital number, since it uses as much as digits as its factorization.

11307171106509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3769057035506.

The product of its (nonzero) digits is 39690, while the sum is 42.

The spelling of 11307171106509 in words is "eleven trillion, three hundred seven billion, one hundred seventy-one million, one hundred six thousand, five hundred nine".