118128233 has 2 divisors, whose sum is σ = 118128234. Its totient is φ = 118128232.

The previous prime is 118128221. The next prime is 118128239. The reversal of 118128233 is 332821811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115197289 + 2930944 = 10733^2 + 1712^2 .

It is a cyclic number.

It is not a de Polignac number, because 118128233 - 2¹² = 118124137 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 118128196 and 118128205.

It is not a weakly prime, because it can be changed into another prime (118128239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59064116 + 59064117.

It is an arithmetic number, because the mean of its divisors is an integer number (59064117).

Almost surely, 2^118128233 is an apocalyptic number.

It is an amenable number.

118128233 is a deficient number, since it is larger than the sum of its proper divisors (1).

118128233 is an equidigital number, since it uses as much as digits as its factorization.

118128233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304, while the sum is 29.

The square root of 118128233 is about 10868.6812907546. The cubic root of 118128233 is about 490.6644228292.

The spelling of 118128233 in words is "one hundred eighteen million, one hundred twenty-eight thousand, two hundred thirty-three".