20031231012203 has 8 divisors (see below), whose sum is σ = 20038403129760. Its totient is φ = 20024060172160.

The previous prime is 20031231012193. The next prime is 20031231012229. The reversal of 20031231012203 is 30221013213002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20031231012203 - 2¹⁰ = 20031231011179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20031231012253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31614851 + ... + 32242227.

It is an arithmetic number, because the mean of its divisors is an integer number (2504800391220).

Almost surely, 2^{20031231012203} is an apocalyptic number.

20031231012203 is a deficient number, since it is larger than the sum of its proper divisors (7172117557).

20031231012203 is an equidigital number, since it uses as much as digits as its factorization.

20031231012203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638757.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20031231012203 its reverse (30221013213002), we get a palindrome (50252244225205).

The spelling of 20031231012203 in words is "twenty trillion, thirty-one billion, two hundred thirty-one million, twelve thousand, two hundred three".