11321431444 has 6 divisors (see below), whose sum is σ = 19812505034. Its totient is φ = 5660715720.

The previous prime is 11321431441. The next prime is 11321431507. The reversal of 11321431444 is 44413412311.

11321431444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 9240976900 + 2080454544 = 96130^2 + 45612^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11321431441) 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 as a sum of consecutive naturals, namely, 1415178927 + ... + 1415178934.

Almost surely, 2^11321431444 is an apocalyptic number.

It is an amenable number.

11321431444 is a deficient number, since it is larger than the sum of its proper divisors (8491073590).

11321431444 is a wasteful number, since it uses less digits than its factorization.

11321431444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2830357865 (or 2830357863 counting only the distinct ones).

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

Adding to 11321431444 its reverse (44413412311), we get a palindrome (55734843755).

The spelling of 11321431444 in words is "eleven billion, three hundred twenty-one million, four hundred thirty-one thousand, four hundred forty-four".