11131242 has 8 divisors (see below), whose sum is σ = 22262496. Its totient is φ = 3710412.

The previous prime is 11131231. The next prime is 11131247. The reversal of 11131242 is 24213111.

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

11131242 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (11131247) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 927598 + ... + 927609.

It is an arithmetic number, because the mean of its divisors is an integer number (2782812).

Almost surely, 2^11131242 is an apocalyptic number.

11131242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11131242 is a wasteful number, since it uses less digits than its factorization.

11131242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1855212.

The product of its digits is 48, while the sum is 15.

The square root of 11131242 is about 3336.3516001765. The cubic root of 11131242 is about 223.2789981924.

Adding to 11131242 its reverse (24213111), we get a palindrome (35344353).

The spelling of 11131242 in words is "eleven million, one hundred thirty-one thousand, two hundred forty-two".