20130024505 has 8 divisors (see below), whose sum is σ = 24289489224. Its totient is φ = 16015046400.

The previous prime is 20130024491. The next prime is 20130024517. The reversal of 20130024505 is 50542003102.

It can be written as a sum of positive squares in 4 ways, for example, as 790115881 + 19339908624 = 28109^2 + 139068^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-20130024505 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11120656 + ... + 11122465.

It is an arithmetic number, because the mean of its divisors is an integer number (3036186153).

Almost surely, 2^20130024505 is an apocalyptic number.

It is an amenable number.

20130024505 is a deficient number, since it is larger than the sum of its proper divisors (4159464719).

20130024505 is a wasteful number, since it uses less digits than its factorization.

20130024505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22243307.

The product of its (nonzero) digits is 1200, while the sum is 22.

Adding to 20130024505 its reverse (50542003102), we get a palindrome (70672027607).

The spelling of 20130024505 in words is "twenty billion, one hundred thirty million, twenty-four thousand, five hundred five".