20623204001 has 4 divisors (see below), whose sum is σ = 20624025600. Its totient is φ = 20622382404.

The previous prime is 20623203941. The next prime is 20623204027. The reversal of 20623204001 is 10040232602.

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 20623204001 - 2²⁶ = 20556095137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20623204061) 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, 371921 + ... + 423758.

It is an arithmetic number, because the mean of its divisors is an integer number (5156006400).

Almost surely, 2^20623204001 is an apocalyptic number.

It is an amenable number.

20623204001 is a deficient number, since it is larger than the sum of its proper divisors (821599).

20623204001 is an equidigital number, since it uses as much as digits as its factorization.

20623204001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821598.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 20623204001 its reverse (10040232602), we get a palindrome (30663436603).

The spelling of 20623204001 in words is "twenty billion, six hundred twenty-three million, two hundred four thousand, one".