20231131203 has 6 divisors (see below), whose sum is σ = 29222745084. Its totient is φ = 13487420796.

The previous prime is 20231131169. The next prime is 20231131213. The reversal of 20231131203 is 30213113202.

It is not a de Polignac number, because 20231131203 - 2¹⁸ = 20230869059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20231131213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1123951725 + ... + 1123951742.

It is an arithmetic number, because the mean of its divisors is an integer number (4870457514).

Almost surely, 2^20231131203 is an apocalyptic number.

20231131203 is a deficient number, since it is larger than the sum of its proper divisors (8991613881).

20231131203 is a wasteful number, since it uses less digits than its factorization.

20231131203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2247903473 (or 2247903470 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 20231131203 its reverse (30213113202), we get a palindrome (50444244405).

The spelling of 20231131203 in words is "twenty billion, two hundred thirty-one million, one hundred thirty-one thousand, two hundred three".