118553311 has 4 divisors (see below), whose sum is σ = 119215800. Its totient is φ = 117890824.

The previous prime is 118553273. The next prime is 118553341. The reversal of 118553311 is 113355811.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 118553311 - 2¹⁵ = 118520543 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 118553311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118553341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 330976 + ... + 331333.

It is an arithmetic number, because the mean of its divisors is an integer number (29803950).

Almost surely, 2^118553311 is an apocalyptic number.

118553311 is a deficient number, since it is larger than the sum of its proper divisors (662489).

118553311 is an equidigital number, since it uses as much as digits as its factorization.

118553311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662488.

The product of its digits is 1800, while the sum is 28.

The square root of 118553311 is about 10888.2189085268. The cubic root of 118553311 is about 491.2522613402.

The spelling of 118553311 in words is "one hundred eighteen million, five hundred fifty-three thousand, three hundred eleven".