20312045303 has 6 divisors (see below), whose sum is σ = 22326463152. Its totient is φ = 18465495620.

The previous prime is 20312045297. The next prime is 20312045309. The reversal of 20312045303 is 30354021302.

It is an interprime number because it is at equal distance from previous prime (20312045297) and next prime (20312045309).

It is not a de Polignac number, because 20312045303 - 2¹⁰ = 20312044279 is a prime.

It is a super-2 number, since 2×20312045303² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20312045309) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 83933951 + ... + 83934192.

It is an arithmetic number, because the mean of its divisors is an integer number (3721077192).

Almost surely, 2^20312045303 is an apocalyptic number.

20312045303 is a deficient number, since it is larger than the sum of its proper divisors (2014417849).

20312045303 is a wasteful number, since it uses less digits than its factorization.

20312045303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167868165 (or 167868154 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

Adding to 20312045303 its reverse (30354021302), we get a palindrome (50666066605).

The spelling of 20312045303 in words is "twenty billion, three hundred twelve million, forty-five thousand, three hundred three".