13442111331 has 16 divisors (see below), whose sum is σ = 19608524928. Its totient is φ = 8123249600.

The previous prime is 13442111269. The next prime is 13442111339. The reversal of 13442111331 is 13311124431.

It is a happy number.

13442111331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 13442111331 - 2⁹ = 13442110819 is a prime.

It is a super-2 number, since 2×13442111331² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13442111339) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 575490 + ... + 598391.

It is an arithmetic number, because the mean of its divisors is an integer number (1225532808).

Almost surely, 2^13442111331 is an apocalyptic number.

13442111331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13442111331 is a deficient number, since it is larger than the sum of its proper divisors (6166413597).

13442111331 is a wasteful number, since it uses less digits than its factorization.

13442111331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1174242.

The product of its digits is 864, while the sum is 24.

Adding to 13442111331 its reverse (13311124431), we get a palindrome (26753235762).

The spelling of 13442111331 in words is "thirteen billion, four hundred forty-two million, one hundred eleven thousand, three hundred thirty-one".