11531322 has 56 divisors (see below), whose sum is σ = 28330560. Its totient is φ = 3489480.

The previous prime is 11531269. The next prime is 11531339. The reversal of 11531322 is 22313511.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11531295 and 11531304.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 15679 + ... + 16397.

Almost surely, 2^11531322 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11531322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14165280).

11531322 is an abundant number, since it is smaller than the sum of its proper divisors (16799238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11531322 is an equidigital number, since it uses as much as digits as its factorization.

11531322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750 (or 735 counting only the distinct ones).

The product of its digits is 180, while the sum is 18.

The square root of 11531322 is about 3395.7800282115. The cubic root of 11531322 is about 225.9226116634.

Adding to 11531322 its reverse (22313511), we get a palindrome (33844833).

The spelling of 11531322 in words is "eleven million, five hundred thirty-one thousand, three hundred twenty-two".