8311121 has 8 divisors (see below), whose sum is σ = 10229184. Its totient is φ = 6575760.

The previous prime is 8311117. The next prime is 8311183. The reversal of 8311121 is 1211138.

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 8311121 - 2² = 8311117 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 8311121.

It is not an unprimeable number, because it can be changed into a prime (8311111) 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 7 ways as a sum of consecutive naturals, for example, 45575 + ... + 45756.

It is an arithmetic number, because the mean of its divisors is an integer number (1278648).

Almost surely, 2^8311121 is an apocalyptic number.

It is an amenable number.

8311121 is a deficient number, since it is larger than the sum of its proper divisors (1918063).

8311121 is a wasteful number, since it uses less digits than its factorization.

8311121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91351.

The product of its digits is 48, while the sum is 17.

The square root of 8311121 is about 2882.9014898189. The cubic root of 8311121 is about 202.5597730370.

Adding to 8311121 its sum of digits (17), we get a palindrome (8311138).

Adding to 8311121 its reverse (1211138), we get a palindrome (9522259).

The spelling of 8311121 in words is "eight million, three hundred eleven thousand, one hundred twenty-one".