118807811 has 4 divisors (see below), whose sum is σ = 123973392. Its totient is φ = 113642232.

The previous prime is 118807789. The next prime is 118807813. The reversal of 118807811 is 118708811.

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 118807811 - 2¹⁸ = 118545667 is a prime.

It is a super-2 number, since 2×118807811² = 28230591909223442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118807813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2582756 + ... + 2582801.

It is an arithmetic number, because the mean of its divisors is an integer number (30993348).

Almost surely, 2^118807811 is an apocalyptic number.

118807811 is a deficient number, since it is larger than the sum of its proper divisors (5165581).

118807811 is an equidigital number, since it uses as much as digits as its factorization.

118807811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5165580.

The product of its (nonzero) digits is 3584, while the sum is 35.

The square root of 118807811 is about 10899.8995866934. The cubic root of 118807811 is about 491.6035360610.

It can be divided in two parts, 11880 and 7811, that added together give a palindrome (19691).

The spelling of 118807811 in words is "one hundred eighteen million, eight hundred seven thousand, eight hundred eleven".