11211342042 has 16 divisors (see below), whose sum is σ = 23397583680. Its totient is φ = 3574630752.

The previous prime is 11211342013. The next prime is 11211342061. The reversal of 11211342042 is 24024311211.

11211342042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40620667 + ... + 40620942.

It is an arithmetic number, because the mean of its divisors is an integer number (1462348980).

Almost surely, 2^11211342042 is an apocalyptic number.

11211342042 is an abundant number, since it is smaller than the sum of its proper divisors (12186241638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11211342042 is a wasteful number, since it uses less digits than its factorization.

11211342042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81241637.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 11211342042 its reverse (24024311211), we get a palindrome (35235653253).

The spelling of 11211342042 in words is "eleven billion, two hundred eleven million, three hundred forty-two thousand, forty-two".