111118429 has 2 divisors, whose sum is σ = 111118430. Its totient is φ = 111118428.

The previous prime is 111118411. The next prime is 111118433. The reversal of 111118429 is 924811111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103428900 + 7689529 = 10170^2 + 2773^2 .

It is a cyclic number.

It is not a de Polignac number, because 111118429 - 2²³ = 102729821 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 111118397 and 111118406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111118439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55559214 + 55559215.

It is an arithmetic number, because the mean of its divisors is an integer number (55559215).

Almost surely, 2^111118429 is an apocalyptic number.

It is an amenable number.

111118429 is a deficient number, since it is larger than the sum of its proper divisors (1).

111118429 is an equidigital number, since it uses as much as digits as its factorization.

111118429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576, while the sum is 28.

The square root of 111118429 is about 10541.2726461277. The cubic root of 111118429 is about 480.7604107595.

The spelling of 111118429 in words is "one hundred eleven million, one hundred eighteen thousand, four hundred twenty-nine".