118211903 has 2 divisors, whose sum is σ = 118211904. Its totient is φ = 118211902.

The previous prime is 118211867. The next prime is 118211941. The reversal of 118211903 is 309112811.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 118211903 - 2¹⁰ = 118210879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118211953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59105951 + 59105952.

It is an arithmetic number, because the mean of its divisors is an integer number (59105952).

Almost surely, 2^118211903 is an apocalyptic number.

118211903 is a deficient number, since it is larger than the sum of its proper divisors (1).

118211903 is an equidigital number, since it uses as much as digits as its factorization.

118211903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 26.

The square root of 118211903 is about 10872.5297424289. The cubic root of 118211903 is about 490.7802410442.

The spelling of 118211903 in words is "one hundred eighteen million, two hundred eleven thousand, nine hundred three".