20012430241 has 4 divisors (see below), whose sum is σ = 20553306772. Its totient is φ = 19471553712.

The previous prime is 20012430239. The next prime is 20012430307. The reversal of 20012430241 is 14203421002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16816902400 + 3195527841 = 129680^2 + 56529^2 .

It is a cyclic number.

It is not a de Polignac number, because 20012430241 - 2¹ = 20012430239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20012430041) 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 3 ways as a sum of consecutive naturals, for example, 270438210 + ... + 270438283.

It is an arithmetic number, because the mean of its divisors is an integer number (5138326693).

Almost surely, 2^20012430241 is an apocalyptic number.

It is an amenable number.

20012430241 is a deficient number, since it is larger than the sum of its proper divisors (540876531).

20012430241 is an equidigital number, since it uses as much as digits as its factorization.

20012430241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540876530.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 20012430241 its reverse (14203421002), we get a palindrome (34215851243).

The spelling of 20012430241 in words is "twenty billion, twelve million, four hundred thirty thousand, two hundred forty-one".