20303030201 has 4 divisors (see below), whose sum is σ = 20504050404. Its totient is φ = 20102010000.

The previous prime is 20303030183. The next prime is 20303030207. The reversal of 20303030201 is 10203030302.

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 19612602025 + 690428176 = 140045^2 + 26276^2 .

It is a cyclic number.

It is not a de Polignac number, because 20303030201 - 2³⁴ = 3123161017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20303030207) 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, 100509950 + ... + 100510151.

It is an arithmetic number, because the mean of its divisors is an integer number (5126012601).

Almost surely, 2^20303030201 is an apocalyptic number.

It is an amenable number.

20303030201 is a deficient number, since it is larger than the sum of its proper divisors (201020203).

20303030201 is a wasteful number, since it uses less digits than its factorization.

20303030201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201020202.

The product of its (nonzero) digits is 108, while the sum is 14.

Adding to 20303030201 its reverse (10203030302), we get a palindrome (30506060503).

The spelling of 20303030201 in words is "twenty billion, three hundred three million, thirty thousand, two hundred one".