11431423344 has 160 divisors (see below), whose sum is σ = 32583057408. Its totient is φ = 3424864000.

The previous prime is 11431423343. The next prime is 11431423357. The reversal of 11431423344 is 44332413411.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11431423343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26522809 + ... + 26523239.

Almost surely, 2^11431423344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11431423344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16291528704).

11431423344 is an abundant number, since it is smaller than the sum of its proper divisors (21151634064).

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

11431423344 is a wasteful number, since it uses less digits than its factorization.

11431423344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907 (or 901 counting only the distinct ones).

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

Adding to 11431423344 its reverse (44332413411), we get a palindrome (55763836755).

The spelling of 11431423344 in words is "eleven billion, four hundred thirty-one million, four hundred twenty-three thousand, three hundred forty-four".