11121142403442 has 16 divisors (see below), whose sum is σ = 22257613759392. Its totient is φ = 3704492642400.

The previous prime is 11121142403411. The next prime is 11121142403447. The reversal of 11121142403442 is 24430424112111.

It is not an unprimeable number, because it can be changed into a prime (11121142403447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 638696923 + ... + 638714334.

It is an arithmetic number, because the mean of its divisors is an integer number (1391100859962).

Almost surely, 2^{11121142403442} is an apocalyptic number.

11121142403442 is an abundant number, since it is smaller than the sum of its proper divisors (11136471355950).

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

11121142403442 is a wasteful number, since it uses less digits than its factorization.

11121142403442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1277412713.

The product of its (nonzero) digits is 6144, while the sum is 30.

Adding to 11121142403442 its reverse (24430424112111), we get a palindrome (35551566515553).

The spelling of 11121142403442 in words is "eleven trillion, one hundred twenty-one billion, one hundred forty-two million, four hundred three thousand, four hundred forty-two".