11173231729 has 8 divisors (see below), whose sum is σ = 12418961472. Its totient is φ = 9965832240.

The previous prime is 11173231721. The next prime is 11173231753. The reversal of 11173231729 is 92713237111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11173231729 - 2³ = 11173231721 is a prime.

It is a super-2 number, since 2×11173231729² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11173231721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9581949 + ... + 9583114.

It is an arithmetic number, because the mean of its divisors is an integer number (1552370184).

Almost surely, 2^11173231729 is an apocalyptic number.

It is an amenable number.

11173231729 is a deficient number, since it is larger than the sum of its proper divisors (1245729743).

11173231729 is a wasteful number, since it uses less digits than its factorization.

11173231729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19165127.

The product of its digits is 15876, while the sum is 37.

The spelling of 11173231729 in words is "eleven billion, one hundred seventy-three million, two hundred thirty-one thousand, seven hundred twenty-nine".