11042681 has 8 divisors (see below), whose sum is σ = 12002760. Its totient is φ = 10098432.

The previous prime is 11042671. The next prime is 11042683. The reversal of 11042681 is 18624011.

It can be written as a sum of positive squares in 4 ways, for example, as 3644281 + 7398400 = 1909^2 + 2720^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11042681 - 2²² = 6848377 is a prime.

It is a super-2 number, since 2×11042681² = 243881607335522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11042683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2480 + ... + 5313.

It is an arithmetic number, because the mean of its divisors is an integer number (1500345).

Almost surely, 2^11042681 is an apocalyptic number.

It is an amenable number.

11042681 is a deficient number, since it is larger than the sum of its proper divisors (960079).

11042681 is a wasteful number, since it uses less digits than its factorization.

11042681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7915.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 11042681 is about 3323.0529637669. The cubic root of 11042681 is about 222.6852793295.

Adding to 11042681 its reverse (18624011), we get a palindrome (29666692).

The spelling of 11042681 in words is "eleven million, forty-two thousand, six hundred eighty-one".