111272111 has 2 divisors, whose sum is σ = 111272112. Its totient is φ = 111272110.

The previous prime is 111272099. The next prime is 111272153.

111272111 is nontrivially palindromic in base 10.

It is a weak prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 111272111 - 2⁶ = 111272047 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111272111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111272011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55636055 + 55636056.

It is an arithmetic number, because the mean of its divisors is an integer number (55636056).

Almost surely, 2^111272111 is an apocalyptic number.

111272111 is a deficient number, since it is larger than the sum of its proper divisors (1).

111272111 is an equidigital number, since it uses as much as digits as its factorization.

111272111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28, while the sum is 17.

The square root of 111272111 is about 10548.5596647125. The cubic root of 111272111 is about 480.9819467264.

The spelling of 111272111 in words is "one hundred eleven million, two hundred seventy-two thousand, one hundred eleven".