20424040201 has 4 divisors (see below), whose sum is σ = 20447707392. Its totient is φ = 20400373012.

The previous prime is 20424040183. The next prime is 20424040213. The reversal of 20424040201 is 10204042402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20424040201 - 2¹⁵ = 20424007433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20424040001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11832301 + ... + 11834026.

It is an arithmetic number, because the mean of its divisors is an integer number (5111926848).

Almost surely, 2^20424040201 is an apocalyptic number.

It is an amenable number.

20424040201 is a deficient number, since it is larger than the sum of its proper divisors (23667191).

20424040201 is an equidigital number, since it uses as much as digits as its factorization.

20424040201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23667190.

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 20424040201 its reverse (10204042402), we get a palindrome (30628082603).

The spelling of 20424040201 in words is "twenty billion, four hundred twenty-four million, forty thousand, two hundred one".