11042531 has 2 divisors, whose sum is σ = 11042532. Its totient is φ = 11042530.

The previous prime is 11042513. The next prime is 11042561. The reversal of 11042531 is 13524011.

11042531 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (11042513) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (13524011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11042531 - 2¹⁸ = 10780387 is a prime.

It is a super-2 number, since 2×11042531² = 243874981771922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11042501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5521265 + 5521266.

It is an arithmetic number, because the mean of its divisors is an integer number (5521266).

Almost surely, 2^11042531 is an apocalyptic number.

11042531 is a deficient number, since it is larger than the sum of its proper divisors (1).

11042531 is an equidigital number, since it uses as much as digits as its factorization.

11042531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 11042531 is about 3323.0303940831. The cubic root of 11042531 is about 222.6842710314.

Adding to 11042531 its reverse (13524011), we get a palindrome (24566542).

The spelling of 11042531 in words is "eleven million, forty-two thousand, five hundred thirty-one".