11031320542 has 32 divisors (see below), whose sum is σ = 19026835200. Its totient is φ = 4743950400.

The previous prime is 11031320539. The next prime is 11031320557. The reversal of 11031320542 is 24502313011.

It is a happy number.

11031320542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 300759 + ... + 335437.

It is an arithmetic number, because the mean of its divisors is an integer number (594588600).

Almost surely, 2^11031320542 is an apocalyptic number.

11031320542 is a deficient number, since it is larger than the sum of its proper divisors (7995514658).

11031320542 is a wasteful number, since it uses less digits than its factorization.

11031320542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35472.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 11031320542 its reverse (24502313011), we get a palindrome (35533633553).

The spelling of 11031320542 in words is "eleven billion, thirty-one million, three hundred twenty thousand, five hundred forty-two".