20303130202303 has 4 divisors (see below), whose sum is σ = 21864909448648. Its totient is φ = 18741350955960.

The previous prime is 20303130202291. The next prime is 20303130202403. The reversal of 20303130202303 is 30320203130302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20303130202303 - 2²¹ = 20303128105151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20303130202403) 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, 780889623153 + ... + 780889623178.

It is an arithmetic number, because the mean of its divisors is an integer number (5466227362162).

Almost surely, 2^{20303130202303} is an apocalyptic number.

20303130202303 is a deficient number, since it is larger than the sum of its proper divisors (1561779246345).

20303130202303 is a wasteful number, since it uses less digits than its factorization.

20303130202303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1561779246344.

The product of its (nonzero) digits is 1944, while the sum is 22.

Adding to 20303130202303 its reverse (30320203130302), we get a palindrome (50623333332605).

The spelling of 20303130202303 in words is "twenty trillion, three hundred three billion, one hundred thirty million, two hundred two thousand, three hundred three".