11338531 has 4 divisors (see below), whose sum is σ = 11421432. Its totient is φ = 11255632.

The previous prime is 11338519. The next prime is 11338553. The reversal of 11338531 is 13583311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13583311 = 7 ⋅1940473.

It is a cyclic number.

It is not a de Polignac number, because 11338531 - 2⁷ = 11338403 is a prime.

It is a super-2 number, since 2×11338531² = 257124570475922, 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 = 11338496 and 11338505.

It is not an unprimeable number, because it can be changed into a prime (11338571) 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, 41245 + ... + 41518.

It is an arithmetic number, because the mean of its divisors is an integer number (2855358).

Almost surely, 2^11338531 is an apocalyptic number.

11338531 is a deficient number, since it is larger than the sum of its proper divisors (82901).

11338531 is an equidigital number, since it uses as much as digits as its factorization.

11338531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82900.

The product of its digits is 1080, while the sum is 25.

The square root of 11338531 is about 3367.2735261633. The cubic root of 11338531 is about 224.6564700040.

The spelling of 11338531 in words is "eleven million, three hundred thirty-eight thousand, five hundred thirty-one".