20430245201 has 4 divisors (see below), whose sum is σ = 20490869412. Its totient is φ = 20369620992.

The previous prime is 20430245179. The next prime is 20430245207. The reversal of 20430245201 is 10254203402.

It is a happy number.

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 1558354576 + 18871890625 = 39476^2 + 137375^2 .

It is a cyclic number.

It is not a de Polignac number, because 20430245201 - 2⁶ = 20430245137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20430245207) 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, 30311600 + ... + 30312273.

It is an arithmetic number, because the mean of its divisors is an integer number (5122717353).

Almost surely, 2^20430245201 is an apocalyptic number.

It is an amenable number.

20430245201 is a deficient number, since it is larger than the sum of its proper divisors (60624211).

20430245201 is an equidigital number, since it uses as much as digits as its factorization.

20430245201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60624210.

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 20430245201 its reverse (10254203402), we get a palindrome (30684448603).

The spelling of 20430245201 in words is "twenty billion, four hundred thirty million, two hundred forty-five thousand, two hundred one".