13443121142 has 16 divisors (see below), whose sum is σ = 22000420800. Its totient is φ = 6109791240.

The previous prime is 13443121141. The next prime is 13443121177. The reversal of 13443121142 is 24112134431.

13443121142 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13443121141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185909 + ... + 247887.

It is an arithmetic number, because the mean of its divisors is an integer number (1375026300).

Almost surely, 2^13443121142 is an apocalyptic number.

13443121142 is a deficient number, since it is larger than the sum of its proper divisors (8557299658).

13443121142 is a wasteful number, since it uses less digits than its factorization.

13443121142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71851.

The product of its digits is 2304, while the sum is 26.

Adding to 13443121142 its reverse (24112134431), we get a palindrome (37555255573).

The spelling of 13443121142 in words is "thirteen billion, four hundred forty-three million, one hundred twenty-one thousand, one hundred forty-two".