11001430505 has 32 divisors (see below), whose sum is σ = 14689382400. Its totient is φ = 7854819840.

The previous prime is 11001430477. The next prime is 11001430513. The reversal of 11001430505 is 50503410011.

It is not a de Polignac number, because 11001430505 - 2⁶ = 11001430441 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3188021 + ... + 3191469.

It is an arithmetic number, because the mean of its divisors is an integer number (459043200).

Almost surely, 2^11001430505 is an apocalyptic number.

It is an amenable number.

11001430505 is a deficient number, since it is larger than the sum of its proper divisors (3687951895).

11001430505 is a wasteful number, since it uses less digits than its factorization.

11001430505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5081.

The product of its (nonzero) digits is 300, while the sum is 20.

Adding to 11001430505 its reverse (50503410011), we get a palindrome (61504840516).

The spelling of 11001430505 in words is "eleven billion, one million, four hundred thirty thousand, five hundred five".