105111881 has 8 divisors (see below), whose sum is σ = 122684160. Its totient is φ = 88178688.

The previous prime is 105111871. The next prime is 105111883. The reversal of 105111881 is 188111501.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105111881 is a prime.

It is a super-2 number, since 2×105111881² = 22097015054716322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 105111881.

It is not an unprimeable number, because it can be changed into a prime (105111883) 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, 159416 + ... + 160073.

It is an arithmetic number, because the mean of its divisors is an integer number (15335520).

Almost surely, 2^105111881 is an apocalyptic number.

It is an amenable number.

105111881 is a deficient number, since it is larger than the sum of its proper divisors (17572279).

105111881 is an equidigital number, since it uses as much as digits as its factorization.

105111881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319543.

The product of its (nonzero) digits is 320, while the sum is 26.

The square root of 105111881 is about 10252.4085462880. The cubic root of 105111881 is about 471.9369005590.

The spelling of 105111881 in words is "one hundred five million, one hundred eleven thousand, eight hundred eighty-one".