11155032242 has 4 divisors (see below), whose sum is σ = 16732548366. Its totient is φ = 5577516120.

The previous prime is 11155032211. The next prime is 11155032247. The reversal of 11155032242 is 24223055111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11090406721 + 64625521 = 105311^2 + 8039^2 .

It is not an unprimeable number, because it can be changed into a prime (11155032247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2788758059 + ... + 2788758062.

Almost surely, 2^11155032242 is an apocalyptic number.

11155032242 is a deficient number, since it is larger than the sum of its proper divisors (5577516124).

11155032242 is an equidigital number, since it uses as much as digits as its factorization.

11155032242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5577516123.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 11155032242 its reverse (24223055111), we get a palindrome (35378087353).

The spelling of 11155032242 in words is "eleven billion, one hundred fifty-five million, thirty-two thousand, two hundred forty-two".