20303102201 has 4 divisors (see below), whose sum is σ = 20635940004. Its totient is φ = 19970264400.

The previous prime is 20303102177. The next prime is 20303102221. The reversal of 20303102201 is 10220130302.

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 3069714025 + 17233388176 = 55405^2 + 131276^2 .

It is a cyclic number.

It is not a de Polignac number, because 20303102201 - 2¹⁰ = 20303101177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20303102221) 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, 166418810 + ... + 166418931.

It is an arithmetic number, because the mean of its divisors is an integer number (5158985001).

Almost surely, 2^20303102201 is an apocalyptic number.

It is an amenable number.

20303102201 is a deficient number, since it is larger than the sum of its proper divisors (332837803).

20303102201 is an equidigital number, since it uses as much as digits as its factorization.

20303102201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332837802.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20303102201 its reverse (10220130302), we get a palindrome (30523232503).

The spelling of 20303102201 in words is "twenty billion, three hundred three million, one hundred two thousand, two hundred one".