118728811 has 2 divisors, whose sum is σ = 118728812. Its totient is φ = 118728810.

The previous prime is 118728809. The next prime is 118728859. The reversal of 118728811 is 118827811.

It is a weak prime.

It is an emirp because it is prime and its reverse (118827811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 118728811 - 2¹ = 118728809 is a prime.

It is a super-2 number, since 2×118728811² = 28193061122947442, which contains 22 as substring.

Together with 118728809, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (118728881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59364405 + 59364406.

It is an arithmetic number, because the mean of its divisors is an integer number (59364406).

Almost surely, 2^118728811 is an apocalyptic number.

118728811 is a deficient number, since it is larger than the sum of its proper divisors (1).

118728811 is an equidigital number, since it uses as much as digits as its factorization.

118728811 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7168, while the sum is 37.

The square root of 118728811 is about 10896.2750974817. The cubic root of 118728811 is about 491.4945497068.

The spelling of 118728811 in words is "one hundred eighteen million, seven hundred twenty-eight thousand, eight hundred eleven".