20031130331223 has 48 divisors (see below), whose sum is σ = 30128783612928. Its totient is φ = 11822562259200.

The previous prime is 20031130331183. The next prime is 20031130331263. The reversal of 20031130331223 is 32213303113002.

It is an interprime number because it is at equal distance from previous prime (20031130331183) and next prime (20031130331263).

It is not a de Polignac number, because 20031130331223 - 2²¹ = 20031128234071 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20031130331193 and 20031130331202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20031130331263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3356218 + ... + 7164248.

It is an arithmetic number, because the mean of its divisors is an integer number (627682991936).

Almost surely, 2^{20031130331223} is an apocalyptic number.

20031130331223 is a deficient number, since it is larger than the sum of its proper divisors (10097653281705).

20031130331223 is a wasteful number, since it uses less digits than its factorization.

20031130331223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3808436 (or 3808425 counting only the distinct ones).

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

Adding to 20031130331223 its reverse (32213303113002), we get a palindrome (52244433444225).

The spelling of 20031130331223 in words is "twenty trillion, thirty-one billion, one hundred thirty million, three hundred thirty-one thousand, two hundred twenty-three".