20312103231303 has 16 divisors (see below), whose sum is σ = 29877465168096. Its totient is φ = 12194883740160.

The previous prime is 20312103231289. The next prime is 20312103231317. The reversal of 20312103231303 is 30313230121302.

It is an interprime number because it is at equal distance from previous prime (20312103231289) and next prime (20312103231317).

It is not a de Polignac number, because 20312103231303 - 2⁵ = 20312103231271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20312103231103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6351500350 + ... + 6351503547.

It is an arithmetic number, because the mean of its divisors is an integer number (1867341573006).

Almost surely, 2^{20312103231303} is an apocalyptic number.

20312103231303 is a deficient number, since it is larger than the sum of its proper divisors (9565361936793).

20312103231303 is a wasteful number, since it uses less digits than its factorization.

20312103231303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12703003954.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 20312103231303 its reverse (30313230121302), we get a palindrome (50625333352605).

The spelling of 20312103231303 in words is "twenty trillion, three hundred twelve billion, one hundred three million, two hundred thirty-one thousand, three hundred three".