11231005 has 4 divisors (see below), whose sum is σ = 13477212. Its totient is φ = 8984800.

The previous prime is 11230939. The next prime is 11231027. The reversal of 11231005 is 50013211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1879641 + 9351364 = 1371^2 + 3058^2 .

It is not a de Polignac number, because 11231005 - 2²¹ = 9133853 is a prime.

It is a super-2 number, since 2×11231005² = 252270946620050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1123096 + ... + 1123105.

It is an arithmetic number, because the mean of its divisors is an integer number (3369303).

Almost surely, 2^11231005 is an apocalyptic number.

It is an amenable number.

11231005 is a deficient number, since it is larger than the sum of its proper divisors (2246207).

11231005 is an equidigital number, since it uses as much as digits as its factorization.

11231005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2246206.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 11231005 is about 3351.2691625711. The cubic root of 11231005 is about 223.9440562355.

Adding to 11231005 its reverse (50013211), we get a palindrome (61244216).

The spelling of 11231005 in words is "eleven million, two hundred thirty-one thousand, five".