13444142331 has 16 divisors (see below), whose sum is σ = 18163440000. Its totient is φ = 8844209088.

The previous prime is 13444142329. The next prime is 13444142333. The reversal of 13444142331 is 13324144431.

It is an interprime number because it is at equal distance from previous prime (13444142329) and next prime (13444142333).

It is not a de Polignac number, because 13444142331 - 2¹ = 13444142329 is a prime.

It is a super-2 number, since 2×13444142331² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13444142333) 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, 82780 + ... + 183686.

It is an arithmetic number, because the mean of its divisors is an integer number (1135215000).

Almost surely, 2^13444142331 is an apocalyptic number.

13444142331 is a deficient number, since it is larger than the sum of its proper divisors (4719297669).

13444142331 is a wasteful number, since it uses less digits than its factorization.

13444142331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101498.

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

Adding to 13444142331 its reverse (13324144431), we get a palindrome (26768286762).

The spelling of 13444142331 in words is "thirteen billion, four hundred forty-four million, one hundred forty-two thousand, three hundred thirty-one".