118220423 has 2 divisors, whose sum is σ = 118220424. Its totient is φ = 118220422.

The previous prime is 118220393. The next prime is 118220441. The reversal of 118220423 is 324022811.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 118220423 - 2²⁶ = 51111559 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118220723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59110211 + 59110212.

It is an arithmetic number, because the mean of its divisors is an integer number (59110212).

Almost surely, 2^118220423 is an apocalyptic number.

118220423 is a deficient number, since it is larger than the sum of its proper divisors (1).

118220423 is an equidigital number, since it uses as much as digits as its factorization.

118220423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 118220423 is about 10872.9215485076. The cubic root of 118220423 is about 490.7920315862.

The spelling of 118220423 in words is "one hundred eighteen million, two hundred twenty thousand, four hundred twenty-three".