118211843 has 2 divisors, whose sum is σ = 118211844. Its totient is φ = 118211842.

The previous prime is 118211827. The next prime is 118211857. The reversal of 118211843 is 348112811.

It is a strong prime.

It is an emirp because it is prime and its reverse (348112811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 118211843 - 2⁴ = 118211827 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (118211803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59105921 + 59105922.

It is an arithmetic number, because the mean of its divisors is an integer number (59105922).

Almost surely, 2^118211843 is an apocalyptic number.

118211843 is a deficient number, since it is larger than the sum of its proper divisors (1).

118211843 is an equidigital number, since it uses as much as digits as its factorization.

118211843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1536, while the sum is 29.

The square root of 118211843 is about 10872.5269831810. The cubic root of 118211843 is about 490.7801580102.

The spelling of 118211843 in words is "one hundred eighteen million, two hundred eleven thousand, eight hundred forty-three".