11331303444 has 72 divisors (see below), whose sum is σ = 29138054400. Its totient is φ = 3712084992.

The previous prime is 11331303439. The next prime is 11331303449. The reversal of 11331303444 is 44430313311.

11331303444 is a `hidden beast` number, since 1 + 1 + 3 + 313 + 0 + 344 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (11331303439) and next prime (11331303449).

It is a super-2 number, since 2×11331303444² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11331303449) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1077757 + ... + 1088219.

It is an arithmetic number, because the mean of its divisors is an integer number (404695200).

Almost surely, 2^11331303444 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 11331303444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14569027200).

11331303444 is an abundant number, since it is smaller than the sum of its proper divisors (17806750956).

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

11331303444 is a wasteful number, since it uses less digits than its factorization.

11331303444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10989 (or 10984 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 11331303444 its reverse (44430313311), we get a palindrome (55761616755).

The spelling of 11331303444 in words is "eleven billion, three hundred thirty-one million, three hundred three thousand, four hundred forty-four".