11343531 has 16 divisors (see below), whose sum is σ = 15989760. Its totient is φ = 7138560.

The previous prime is 11343509. The next prime is 11343533. The reversal of 11343531 is 13534311.

It is not a de Polignac number, because 11343531 - 2¹⁸ = 11081387 is a prime.

It is a super-2 number, since 2×11343531² = 257351391095922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11343498 and 11343507.

It is not an unprimeable number, because it can be changed into a prime (11343533) 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 15 ways as a sum of consecutive naturals, for example, 4411 + ... + 6491.

It is an arithmetic number, because the mean of its divisors is an integer number (999360).

Almost surely, 2^11343531 is an apocalyptic number.

11343531 is a deficient number, since it is larger than the sum of its proper divisors (4646229).

11343531 is a wasteful number, since it uses less digits than its factorization.

11343531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2186.

The product of its digits is 540, while the sum is 21.

The square root of 11343531 is about 3368.0158847606. The cubic root of 11343531 is about 224.6894877226.

Adding to 11343531 its reverse (13534311), we get a palindrome (24877842).

The spelling of 11343531 in words is "eleven million, three hundred forty-three thousand, five hundred thirty-one".