118658203021 has 2 divisors, whose sum is σ = 118658203022. Its totient is φ = 118658203020.

The previous prime is 118658202967. The next prime is 118658203073. The reversal of 118658203021 is 120302856811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117470022121 + 1188180900 = 342739^2 + 34470^2 .

It is a cyclic number.

It is not a de Polignac number, because 118658203021 - 2¹⁷ = 118658071949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118658203621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59329101510 + 59329101511.

It is an arithmetic number, because the mean of its divisors is an integer number (59329101511).

Almost surely, 2^118658203021 is an apocalyptic number.

It is an amenable number.

118658203021 is a deficient number, since it is larger than the sum of its proper divisors (1).

118658203021 is an equidigital number, since it uses as much as digits as its factorization.

118658203021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23040, while the sum is 37.

The spelling of 118658203021 in words is "one hundred eighteen billion, six hundred fifty-eight million, two hundred three thousand, twenty-one".