11444342131 has 4 divisors (see below), whose sum is σ = 11444685552. Its totient is φ = 11443998712.

The previous prime is 11444342101. The next prime is 11444342141. The reversal of 11444342131 is 13124344411.

11444342131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13124344411 = 19 ⋅690754969.

It is a cyclic number.

It is not a de Polignac number, because 11444342131 - 2⁷ = 11444342003 is a prime.

It is a super-2 number, since 2×11444342131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11444342131.

It is not an unprimeable number, because it can be changed into a prime (11444342101) 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 3 ways as a sum of consecutive naturals, for example, 115615 + ... + 190408.

It is an arithmetic number, because the mean of its divisors is an integer number (2861171388).

Almost surely, 2^11444342131 is an apocalyptic number.

11444342131 is a deficient number, since it is larger than the sum of its proper divisors (343421).

11444342131 is an equidigital number, since it uses as much as digits as its factorization.

11444342131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343420.

The product of its digits is 4608, while the sum is 28.

Adding to 11444342131 its reverse (13124344411), we get a palindrome (24568686542).

The spelling of 11444342131 in words is "eleven billion, four hundred forty-four million, three hundred forty-two thousand, one hundred thirty-one".