111278872111 has 8 divisors (see below), whose sum is σ = 122597066448. Its totient is φ = 100161000000.

The previous prime is 111278872093. The next prime is 111278872129.

111278872111 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (111278872093) and next prime (111278872129).

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-111278872111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111278872141) 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, 50079390 + ... + 50081611.

It is an arithmetic number, because the mean of its divisors is an integer number (15324633306).

Almost surely, 2^111278872111 is an apocalyptic number.

111278872111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111278872111 is a deficient number, since it is larger than the sum of its proper divisors (11318194337).

111278872111 is a wasteful number, since it uses less digits than its factorization.

111278872111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100161113.

The product of its digits is 12544, while the sum is 40.

It can be divided in two parts, 111278 and 872111, that added together give a palindrome (983389).

The spelling of 111278872111 in words is "one hundred eleven billion, two hundred seventy-eight million, eight hundred seventy-two thousand, one hundred eleven".