11001430544 has 80 divisors (see below), whose sum is σ = 23338183344. Its totient is φ = 4993228800.

The previous prime is 11001430537. The next prime is 11001430553. The reversal of 11001430544 is 44503410011.

It can be written as a sum of positive squares in 8 ways, for example, as 1631190544 + 9370240000 = 40388^2 + 96800^2 .

It is a super-2 number, since 2×11001430544² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6391604 + ... + 6393324.

Almost surely, 2^11001430544 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 11001430544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11669091672).

11001430544 is an abundant number, since it is smaller than the sum of its proper divisors (12336752800).

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

11001430544 is a wasteful number, since it uses less digits than its factorization.

11001430544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2236 (or 2230 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 11001430544 its reverse (44503410011), we get a palindrome (55504840555).

The spelling of 11001430544 in words is "eleven billion, one million, four hundred thirty thousand, five hundred forty-four".