20000231013031 has 4 divisors (see below), whose sum is σ = 20001333033000. Its totient is φ = 19999128993064.

The previous prime is 20000231012999. The next prime is 20000231013157. The reversal of 20000231013031 is 13031013200002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20000231013031 - 2⁵ = 20000231012999 is a prime.

It is a super-4 number, since 4×20000231013031⁴ (a number of 54 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20000231012996 and 20000231013014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000201013031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 550982761 + ... + 551019058.

It is an arithmetic number, because the mean of its divisors is an integer number (5000333258250).

Almost surely, 2^{20000231013031} is an apocalyptic number.

20000231013031 is a deficient number, since it is larger than the sum of its proper divisors (1102019969).

20000231013031 is a wasteful number, since it uses less digits than its factorization.

20000231013031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102019968.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 20000231013031 its reverse (13031013200002), we get a palindrome (33031244213033).

The spelling of 20000231013031 in words is "twenty trillion, two hundred thirty-one million, thirteen thousand, thirty-one".