11213642 has 16 divisors (see below), whose sum is σ = 19429632. Its totient is φ = 4797120.

The previous prime is 11213639. The next prime is 11213647. The reversal of 11213642 is 24631211.

11213642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (11213647) 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, 14618 + ... + 15365.

It is an arithmetic number, because the mean of its divisors is an integer number (1214352).

Almost surely, 2^11213642 is an apocalyptic number.

11213642 is a deficient number, since it is larger than the sum of its proper divisors (8215990).

11213642 is a wasteful number, since it uses less digits than its factorization.

11213642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30013.

The product of its digits is 288, while the sum is 20.

The square root of 11213642 is about 3348.6776494611. The cubic root of 11213642 is about 223.8285917647.

Adding to 11213642 its reverse (24631211), we get a palindrome (35844853).

Subtracting 11213642 from its reverse (24631211), we obtain a square (13417569 = 3663²).

The spelling of 11213642 in words is "eleven million, two hundred thirteen thousand, six hundred forty-two".