13185001181 has 8 divisors (see below), whose sum is σ = 14384655264. Its totient is φ = 11985516720.

The previous prime is 13185001169. The next prime is 13185001187. The reversal of 13185001181 is 18110058131.

It is a happy number.

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 13185001181 - 2²⁶ = 13117892317 is a prime.

It is a super-2 number, since 2×13185001181² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13185001187) 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, 163715 + ... + 230591.

It is an arithmetic number, because the mean of its divisors is an integer number (1798081908).

Almost surely, 2^13185001181 is an apocalyptic number.

13185001181 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13185001181 is a deficient number, since it is larger than the sum of its proper divisors (1199654083).

13185001181 is a wasteful number, since it uses less digits than its factorization.

13185001181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84811.

The product of its (nonzero) digits is 960, while the sum is 29.

The spelling of 13185001181 in words is "thirteen billion, one hundred eighty-five million, one thousand, one hundred eighty-one".