118742111 has 4 divisors (see below), whose sum is σ = 119265432. Its totient is φ = 118218792.

The previous prime is 118742089. The next prime is 118742119. The reversal of 118742111 is 111247811.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 118742111 - 2⁶ = 118742047 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 (118742119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 261320 + ... + 261773.

It is an arithmetic number, because the mean of its divisors is an integer number (29816358).

Almost surely, 2^118742111 is an apocalyptic number.

118742111 is a deficient number, since it is larger than the sum of its proper divisors (523321).

118742111 is an equidigital number, since it uses as much as digits as its factorization.

118742111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523320.

The product of its digits is 448, while the sum is 26.

The square root of 118742111 is about 10896.8853806948. The cubic root of 118742111 is about 491.5129014261.

Adding to 118742111 its reverse (111247811), we get a palindrome (229989922).

The spelling of 118742111 in words is "one hundred eighteen million, seven hundred forty-two thousand, one hundred eleven".