11148311442 has 16 divisors (see below), whose sum is σ = 23608189152. Its totient is φ = 3497509440.

The previous prime is 11148311431. The next prime is 11148311443. The reversal of 11148311442 is 24411384111.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (11148311443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54648484 + ... + 54648687.

It is an arithmetic number, because the mean of its divisors is an integer number (1475511822).

Almost surely, 2^11148311442 is an apocalyptic number.

11148311442 is an abundant number, since it is smaller than the sum of its proper divisors (12459877710).

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

11148311442 is a wasteful number, since it uses less digits than its factorization.

11148311442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109297193.

The product of its digits is 3072, while the sum is 30.

Adding to 11148311442 its reverse (24411384111), we get a palindrome (35559695553).

The spelling of 11148311442 in words is "eleven billion, one hundred forty-eight million, three hundred eleven thousand, four hundred forty-two".