11513331 has 12 divisors (see below), whose sum is σ = 16663608. Its totient is φ = 7660224.

The previous prime is 11513329. The next prime is 11513339. The reversal of 11513331 is 13331511.

It is not a de Polignac number, because 11513331 - 2¹ = 11513329 is a prime.

It is a super-2 number, since 2×11513331² = 265113581431122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11513339) 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 11 ways as a sum of consecutive naturals, for example, 5211 + ... + 7083.

It is an arithmetic number, because the mean of its divisors is an integer number (1388634).

Almost surely, 2^11513331 is an apocalyptic number.

11513331 is a deficient number, since it is larger than the sum of its proper divisors (5150277).

11513331 is a wasteful number, since it uses less digits than its factorization.

11513331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2562 (or 2559 counting only the distinct ones).

The product of its digits is 135, while the sum is 18.

The square root of 11513331 is about 3393.1299709855. The cubic root of 11513331 is about 225.8050567877.

Adding to 11513331 its reverse (13331511), we get a palindrome (24844842).

The spelling of 11513331 in words is "eleven million, five hundred thirteen thousand, three hundred thirty-one".