13140344442 has 16 divisors (see below), whose sum is σ = 26513262720. Its totient is φ = 4341352512.

The previous prime is 13140344369. The next prime is 13140344447. The reversal of 13140344442 is 24444304131.

It is not an unprimeable number, because it can be changed into a prime (13140344447) 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, 9689842 + ... + 9691197.

It is an arithmetic number, because the mean of its divisors is an integer number (1657078920).

Almost surely, 2^13140344442 is an apocalyptic number.

13140344442 is an abundant number, since it is smaller than the sum of its proper divisors (13372918278).

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

13140344442 is a wasteful number, since it uses less digits than its factorization.

13140344442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19381157.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 13140344442 its reverse (24444304131), we get a palindrome (37584648573).

The spelling of 13140344442 in words is "thirteen billion, one hundred forty million, three hundred forty-four thousand, four hundred forty-two".