11871103081 has 16 divisors (see below), whose sum is σ = 12921768000. Its totient is φ = 10869363648.

The previous prime is 11871103061. The next prime is 11871103093. The reversal of 11871103081 is 18030117811.

It is a cyclic number.

It is not a de Polignac number, because 11871103081 - 2¹⁵ = 11871070313 is a prime.

It is a super-2 number, since 2×11871103081² (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 (11871103031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20506 + ... + 155443.

It is an arithmetic number, because the mean of its divisors is an integer number (807610500).

Almost surely, 2^11871103081 is an apocalyptic number.

It is an amenable number.

11871103081 is a deficient number, since it is larger than the sum of its proper divisors (1050664919).

11871103081 is a wasteful number, since it uses less digits than its factorization.

11871103081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176088.

The product of its (nonzero) digits is 1344, while the sum is 31.

The spelling of 11871103081 in words is "eleven billion, eight hundred seventy-one million, one hundred three thousand, eighty-one".