20312023231303 has 16 divisors (see below), whose sum is σ = 22211232186240. Its totient is φ = 18500219600896.

The previous prime is 20312023231231. The next prime is 20312023231363. The reversal of 20312023231303 is 30313232021302.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20312023231303 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 (20312023231363) 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, 142748026 + ... + 142890247.

It is an arithmetic number, because the mean of its divisors is an integer number (1388202011640).

Almost surely, 2^{20312023231303} is an apocalyptic number.

20312023231303 is a deficient number, since it is larger than the sum of its proper divisors (1899208954937).

20312023231303 is a wasteful number, since it uses less digits than its factorization.

20312023231303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285638426.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 20312023231303 its reverse (30313232021302), we get a palindrome (50625255252605).

The spelling of 20312023231303 in words is "twenty trillion, three hundred twelve billion, twenty-three million, two hundred thirty-one thousand, three hundred three".