11043881 has 2 divisors, whose sum is σ = 11043882. Its totient is φ = 11043880.

The previous prime is 11043869. The next prime is 11043889. The reversal of 11043881 is 18834011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7376656 + 3667225 = 2716^2 + 1915^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11043881 is a prime.

It is a super-2 number, since 2×11043881² = 243934615084322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11043881.

It is not a weakly prime, because it can be changed into another prime (11043889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5521940 + 5521941.

It is an arithmetic number, because the mean of its divisors is an integer number (5521941).

Almost surely, 2^11043881 is an apocalyptic number.

It is an amenable number.

11043881 is a deficient number, since it is larger than the sum of its proper divisors (1).

11043881 is an equidigital number, since it uses as much as digits as its factorization.

11043881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 11043881 is about 3323.2335157193. The cubic root of 11043881 is about 222.6933453856.

Adding to 11043881 its reverse (18834011), we get a palindrome (29877892).

The spelling of 11043881 in words is "eleven million, forty-three thousand, eight hundred eighty-one".