11880187311171 has 16 divisors (see below), whose sum is σ = 16108883452800. Its totient is φ = 7785810603648.

The previous prime is 11880187311169. The next prime is 11880187311197. The reversal of 11880187311171 is 17111378108811.

It is not a de Polignac number, because 11880187311171 - 2¹ = 11880187311169 is a prime.

It is a super-2 number, since 2×11880187311171² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11880187311171.

It is not an unprimeable number, because it can be changed into a prime (11880187311101) 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, 22806795 + ... + 23321883.

It is an arithmetic number, because the mean of its divisors is an integer number (1006805215800).

Almost surely, 2^{11880187311171} is an apocalyptic number.

11880187311171 is a deficient number, since it is larger than the sum of its proper divisors (4228696141629).

11880187311171 is a wasteful number, since it uses less digits than its factorization.

11880187311171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645458.

The product of its (nonzero) digits is 75264, while the sum is 48.

The spelling of 11880187311171 in words is "eleven trillion, eight hundred eighty billion, one hundred eighty-seven million, three hundred eleven thousand, one hundred seventy-one".