11042291 has 12 divisors (see below), whose sum is σ = 12051648. Its totient is φ = 10112544.

The previous prime is 11042279. The next prime is 11042303. The reversal of 11042291 is 19224011.

It is an interprime number because it is at equal distance from previous prime (11042279) and next prime (11042303).

It is a de Polignac number, because none of the positive numbers 2^k-11042291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11042201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37541 + ... + 37833.

It is an arithmetic number, because the mean of its divisors is an integer number (1004304).

Almost surely, 2^11042291 is an apocalyptic number.

11042291 is a deficient number, since it is larger than the sum of its proper divisors (1009357).

11042291 is a wasteful number, since it uses less digits than its factorization.

11042291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542 (or 529 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 11042291 is about 3322.9942822701. The cubic root of 11042291 is about 222.6826577354.

The spelling of 11042291 in words is "eleven million, forty-two thousand, two hundred ninety-one".