11413311444 has 72 divisors (see below), whose sum is σ = 29475770688. Its totient is φ = 3722716800.

The previous prime is 11413311401. The next prime is 11413311461. The reversal of 11413311444 is 44411331411.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 348544 + ... + 379880.

It is an arithmetic number, because the mean of its divisors is an integer number (409385704).

Almost surely, 2^11413311444 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 11413311444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14737885344).

11413311444 is an abundant number, since it is smaller than the sum of its proper divisors (18062459244).

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

11413311444 is a wasteful number, since it uses less digits than its factorization.

11413311444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31565 (or 31560 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

Adding to 11413311444 its reverse (44411331411), we get a palindrome (55824642855).

The spelling of 11413311444 in words is "eleven billion, four hundred thirteen million, three hundred eleven thousand, four hundred forty-four".