11031243 has 4 divisors (see below), whose sum is σ = 14708328. Its totient is φ = 7354160.

The previous prime is 11031239. The next prime is 11031247. The reversal of 11031243 is 34213011.

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

It is an interprime number because it is at equal distance from previous prime (11031239) and next prime (11031247).

It is a cyclic number.

It is not a de Polignac number, because 11031243 - 2² = 11031239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11031247) 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 3 ways as a sum of consecutive naturals, for example, 1838538 + ... + 1838543.

It is an arithmetic number, because the mean of its divisors is an integer number (3677082).

Almost surely, 2^11031243 is an apocalyptic number.

11031243 is a deficient number, since it is larger than the sum of its proper divisors (3677085).

11031243 is an equidigital number, since it uses as much as digits as its factorization.

11031243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3677084.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 11031243 is about 3321.3315101025. The cubic root of 11031243 is about 222.6083670244.

Adding to 11031243 its reverse (34213011), we get a palindrome (45244254).

It can be divided in two parts, 1103 and 1243, that added together give a triangular number (2346 = T₆₈).

The spelling of 11031243 in words is "eleven million, thirty-one thousand, two hundred forty-three".