11133042442 has 4 divisors (see below), whose sum is σ = 16699563666. Its totient is φ = 5566521220.

The previous prime is 11133042439. The next prime is 11133042449. The reversal of 11133042442 is 24424033111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24424033111 = 37 ⋅660109003.

It can be written as a sum of positive squares in only one way, i.e., 9185497281 + 1947545161 = 95841^2 + 44131^2 .

It is not an unprimeable number, because it can be changed into a prime (11133042449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2783260609 + ... + 2783260612.

Almost surely, 2^11133042442 is an apocalyptic number.

11133042442 is a deficient number, since it is larger than the sum of its proper divisors (5566521224).

11133042442 is an equidigital number, since it uses as much as digits as its factorization.

11133042442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5566521223.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 11133042442 its reverse (24424033111), we get a palindrome (35557075553).

The spelling of 11133042442 in words is "eleven billion, one hundred thirty-three million, forty-two thousand, four hundred forty-two".