11311004042 has 16 divisors (see below), whose sum is σ = 18379745160. Its totient is φ = 5220461376.

The previous prime is 11311003969. The next prime is 11311004083. The reversal of 11311004042 is 24040011311.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 407676481 + 10903327561 = 20191^2 + 104419^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11311004042.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1282703 + ... + 1291490.

Almost surely, 2^11311004042 is an apocalyptic number.

11311004042 is a deficient number, since it is larger than the sum of its proper divisors (7068741118).

11311004042 is an equidigital number, since it uses as much as digits as its factorization.

11311004042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2574234 (or 2574208 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 11311004042 its reverse (24040011311), we get a palindrome (35351015353).

The spelling of 11311004042 in words is "eleven billion, three hundred eleven million, four thousand, forty-two".