11418121 has 8 divisors (see below), whose sum is σ = 13414464. Its totient is φ = 9581520.

The previous prime is 11418119. The next prime is 11418157. The reversal of 11418121 is 12181411.

It is the 1380-th star number.

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

It is not a de Polignac number, because 11418121 - 2¹ = 11418119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11418181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39781 + ... + 40066.

It is an arithmetic number, because the mean of its divisors is an integer number (1676808).

Almost surely, 2^11418121 is an apocalyptic number.

11418121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11418121 is a deficient number, since it is larger than the sum of its proper divisors (1996343).

11418121 is a wasteful number, since it uses less digits than its factorization.

11418121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79871.

The product of its digits is 64, while the sum is 19.

The square root of 11418121 is about 3379.0710261846. The cubic root of 11418121 is about 225.1808981418.

Adding to 11418121 its reverse (12181411), we get a palindrome (23599532).

The spelling of 11418121 in words is "eleven million, four hundred eighteen thousand, one hundred twenty-one".