11516331 has 4 divisors (see below), whose sum is σ = 15355112. Its totient is φ = 7677552.

The previous prime is 11516321. The next prime is 11516369. The reversal of 11516331 is 13361511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13361511 = 3 ⋅4453837.

It is a de Polignac number, because none of the positive numbers 2^k-11516331 is a prime.

It is a super-2 number, since 2×11516331² = 265251759403122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11516298 and 11516307.

It is not an unprimeable number, because it can be changed into a prime (11516321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1919386 + ... + 1919391.

It is an arithmetic number, because the mean of its divisors is an integer number (3838778).

Almost surely, 2^11516331 is an apocalyptic number.

11516331 is a deficient number, since it is larger than the sum of its proper divisors (3838781).

11516331 is an equidigital number, since it uses as much as digits as its factorization.

11516331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3838780.

The product of its digits is 270, while the sum is 21.

The square root of 11516331 is about 3393.5720119072. The cubic root of 11516331 is about 225.8246675717.

Adding to 11516331 its reverse (13361511), we get a palindrome (24877842).

The spelling of 11516331 in words is "eleven million, five hundred sixteen thousand, three hundred thirty-one".