11100140042 has 4 divisors (see below), whose sum is σ = 16650210066. Its totient is φ = 5550070020.

The previous prime is 11100140033. The next prime is 11100140057. The reversal of 11100140042 is 24004100111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24004100111 = 7109 ⋅3376579.

It can be written as a sum of positive squares in only one way, i.e., 7140081001 + 3960059041 = 84499^2 + 62929^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11100139999 and 11100140026.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2775035009 + ... + 2775035012.

Almost surely, 2^11100140042 is an apocalyptic number.

11100140042 is a deficient number, since it is larger than the sum of its proper divisors (5550070024).

11100140042 is an equidigital number, since it uses as much as digits as its factorization.

11100140042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5550070023.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 11100140042 its reverse (24004100111), we get a palindrome (35104240153).

The spelling of 11100140042 in words is "eleven billion, one hundred million, one hundred forty thousand, forty-two".