13444331142 has 32 divisors (see below), whose sum is σ = 29557021824. Its totient is φ = 4042937600.

The previous prime is 13444331123. The next prime is 13444331143. The reversal of 13444331142 is 24113344431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13444331143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 768843 + ... + 786134.

It is an arithmetic number, because the mean of its divisors is an integer number (923656932).

Almost surely, 2^13444331142 is an apocalyptic number.

13444331142 is an abundant number, since it is smaller than the sum of its proper divisors (16112690682).

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

13444331142 is a wasteful number, since it uses less digits than its factorization.

13444331142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1555124.

The product of its digits is 13824, while the sum is 30.

Adding to 13444331142 its reverse (24113344431), we get a palindrome (37557675573).

The spelling of 13444331142 in words is "thirteen billion, four hundred forty-four million, three hundred thirty-one thousand, one hundred forty-two".