13161321142 has 16 divisors (see below), whose sum is σ = 20989018080. Its totient is φ = 6175778752.

The previous prime is 13161321127. The next prime is 13161321161. The reversal of 13161321142 is 24112316131.

13161321142 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, 2696767 + ... + 2701642.

It is an arithmetic number, because the mean of its divisors is an integer number (1311813630).

Almost surely, 2^13161321142 is an apocalyptic number.

13161321142 is a deficient number, since it is larger than the sum of its proper divisors (7827696938).

13161321142 is a wasteful number, since it uses less digits than its factorization.

13161321142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5398487.

The product of its digits is 864, while the sum is 25.

Adding to 13161321142 its reverse (24112316131), we get a palindrome (37273637273).

The spelling of 13161321142 in words is "thirteen billion, one hundred sixty-one million, three hundred twenty-one thousand, one hundred forty-two".