11231331 has 8 divisors (see below), whose sum is σ = 15458304. Its totient is φ = 7245960.

The previous prime is 11231329. The next prime is 11231357. The reversal of 11231331 is 13313211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11231331 - 2¹ = 11231329 is a prime.

It is a super-2 number, since 2×11231331² = 252285592063122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11231331.

It is not an unprimeable number, because it can be changed into a prime (11231371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60291 + ... + 60476.

It is an arithmetic number, because the mean of its divisors is an integer number (1932288).

Almost surely, 2^11231331 is an apocalyptic number.

11231331 is a deficient number, since it is larger than the sum of its proper divisors (4226973).

11231331 is a wasteful number, since it uses less digits than its factorization.

11231331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120801.

The product of its digits is 54, while the sum is 15.

The square root of 11231331 is about 3351.3178005077. The cubic root of 11231331 is about 223.9462230067.

Adding to 11231331 its reverse (13313211), we get a palindrome (24544542).

The spelling of 11231331 in words is "eleven million, two hundred thirty-one thousand, three hundred thirty-one".