11243131 has 2 divisors, whose sum is σ = 11243132. Its totient is φ = 11243130.

The previous prime is 11243119. The next prime is 11243149. The reversal of 11243131 is 13134211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11243131 - 2⁹ = 11242619 is a prime.

It is a super-2 number, since 2×11243131² = 252815989366322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11243101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5621565 + 5621566.

It is an arithmetic number, because the mean of its divisors is an integer number (5621566).

Almost surely, 2^11243131 is an apocalyptic number.

11243131 is a deficient number, since it is larger than the sum of its proper divisors (1).

11243131 is an equidigital number, since it uses as much as digits as its factorization.

11243131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72, while the sum is 16.

The square root of 11243131 is about 3353.0778398361. The cubic root of 11243131 is about 224.0246239406.

Adding to 11243131 its reverse (13134211), we get a palindrome (24377342).

The spelling of 11243131 in words is "eleven million, two hundred forty-three thousand, one hundred thirty-one".