118020403 has 4 divisors (see below), whose sum is σ = 118727280. Its totient is φ = 117313528.

The previous prime is 118020373. The next prime is 118020407. The reversal of 118020403 is 304020811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 304020811 = 12329 ⋅24659.

It is a cyclic number.

It is not a de Polignac number, because 118020403 - 2²¹ = 115923251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118020407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353188 + ... + 353521.

It is an arithmetic number, because the mean of its divisors is an integer number (29681820).

Almost surely, 2^118020403 is an apocalyptic number.

118020403 is a deficient number, since it is larger than the sum of its proper divisors (706877).

118020403 is an equidigital number, since it uses as much as digits as its factorization.

118020403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706876.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 118020403 is about 10863.7195748049. The cubic root of 118020403 is about 490.5150810217.

The spelling of 118020403 in words is "one hundred eighteen million, twenty thousand, four hundred three".