11108642 has 4 divisors (see below), whose sum is σ = 16662966. Its totient is φ = 5554320.

The previous prime is 11108611. The next prime is 11108651. The reversal of 11108642 is 24680111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24680111 = 1931 ⋅12781.

It can be written as a sum of positive squares in only one way, i.e., 8014561 + 3094081 = 2831^2 + 1759^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2777159 + ... + 2777162.

Almost surely, 2^11108642 is an apocalyptic number.

11108642 is a deficient number, since it is larger than the sum of its proper divisors (5554324).

11108642 is an equidigital number, since it uses as much as digits as its factorization.

11108642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5554323.

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

The square root of 11108642 is about 3332.9629460887. The cubic root of 11108642 is about 223.1277864262.

Adding to 11108642 its reverse (24680111), we get a palindrome (35788753).

The spelling of 11108642 in words is "eleven million, one hundred eight thousand, six hundred forty-two".