11561342 has 16 divisors (see below), whose sum is σ = 19075392. Its totient is φ = 5221920.

The previous prime is 11561321. The next prime is 11561359. The reversal of 11561342 is 24316511.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3509 + ... + 5952.

It is an arithmetic number, because the mean of its divisors is an integer number (1192212).

Almost surely, 2^11561342 is an apocalyptic number.

11561342 is a deficient number, since it is larger than the sum of its proper divisors (7514050).

11561342 is a wasteful number, since it uses less digits than its factorization.

11561342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9523.

The product of its digits is 720, while the sum is 23.

The square root of 11561342 is about 3400.1973472138. The cubic root of 11561342 is about 226.1184932178.

Adding to 11561342 its reverse (24316511), we get a palindrome (35877853).

The spelling of 11561342 in words is "eleven million, five hundred sixty-one thousand, three hundred forty-two".