20440130223 has 8 divisors (see below), whose sum is σ = 27264962736. Its totient is φ = 13621025600.

The previous prime is 20440130203. The next prime is 20440130239. The reversal of 20440130223 is 32203104402.

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

It is a cyclic number.

It is not a de Polignac number, because 20440130223 - 2²¹ = 20438033071 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20440130223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20440130203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1423638 + ... + 1437923.

It is an arithmetic number, because the mean of its divisors is an integer number (3408120342).

Almost surely, 2^20440130223 is an apocalyptic number.

20440130223 is a deficient number, since it is larger than the sum of its proper divisors (6824832513).

20440130223 is a wasteful number, since it uses less digits than its factorization.

20440130223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2863945.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 20440130223 its reverse (32203104402), we get a palindrome (52643234625).

The spelling of 20440130223 in words is "twenty billion, four hundred forty million, one hundred thirty thousand, two hundred twenty-three".