113218811 has 8 divisors (see below), whose sum is σ = 119906304. Its totient is φ = 106678440.

The previous prime is 113218783. The next prime is 113218829. The reversal of 113218811 is 118812311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 113218811 - 2¹⁸ = 112956667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113218111) 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 in 7 ways as a sum of consecutive naturals, for example, 35195 + ... + 38276.

It is an arithmetic number, because the mean of its divisors is an integer number (14988288).

Almost surely, 2^113218811 is an apocalyptic number.

113218811 is a deficient number, since it is larger than the sum of its proper divisors (6687493).

113218811 is an equidigital number, since it uses as much as digits as its factorization.

113218811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73561.

The product of its digits is 384, while the sum is 26.

The square root of 113218811 is about 10640.4328389403. The cubic root of 113218811 is about 483.7706649203.

The spelling of 113218811 in words is "one hundred thirteen million, two hundred eighteen thousand, eight hundred eleven".