11043631 has 2 divisors, whose sum is σ = 11043632. Its totient is φ = 11043630.

The previous prime is 11043619. The next prime is 11043661. The reversal of 11043631 is 13634011.

It is a weak prime.

It is an emirp because it is prime and its reverse (13634011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11043631 - 2⁹ = 11043119 is a prime.

It is a super-2 number, since 2×11043631² = 243923571328322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11043599 and 11043608.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11043661) 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 as a sum of consecutive naturals, namely, 5521815 + 5521816.

It is an arithmetic number, because the mean of its divisors is an integer number (5521816).

Almost surely, 2^11043631 is an apocalyptic number.

11043631 is a deficient number, since it is larger than the sum of its proper divisors (1).

11043631 is an equidigital number, since it uses as much as digits as its factorization.

11043631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 11043631 is about 3323.1959015382. The cubic root of 11043631 is about 222.6916650055.

Adding to 11043631 its reverse (13634011), we get a palindrome (24677642).

The spelling of 11043631 in words is "eleven million, forty-three thousand, six hundred thirty-one".