11421105142 has 16 divisors (see below), whose sum is σ = 17227844352. Its totient is φ = 5678513280.

The previous prime is 11421105077. The next prime is 11421105169. The reversal of 11421105142 is 24150112411.

It is a happy number.

11421105142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 1628788 + ... + 1635784.

It is an arithmetic number, because the mean of its divisors is an integer number (1076740272).

Almost surely, 2^11421105142 is an apocalyptic number.

11421105142 is a deficient number, since it is larger than the sum of its proper divisors (5806739210).

11421105142 is a wasteful number, since it uses less digits than its factorization.

11421105142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11463.

The product of its (nonzero) digits is 320, while the sum is 22.

Adding to 11421105142 its reverse (24150112411), we get a palindrome (35571217553).

The spelling of 11421105142 in words is "eleven billion, four hundred twenty-one million, one hundred five thousand, one hundred forty-two".