20323231012031 has 8 divisors (see below), whose sum is σ = 20357159306400. Its totient is φ = 20289324464640.

The previous prime is 20323231012013. The next prime is 20323231012087. The reversal of 20323231012031 is 13021013232302.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20323231012031 is a prime.

It is a super-2 number, since 2×20323231012031² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20323231011988 and 20323231012006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20323231032031) 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, 3565586 + ... + 7304783.

It is an arithmetic number, because the mean of its divisors is an integer number (2544644913300).

Almost surely, 2^{20323231012031} is an apocalyptic number.

20323231012031 is a deficient number, since it is larger than the sum of its proper divisors (33928294369).

20323231012031 is a wasteful number, since it uses less digits than its factorization.

20323231012031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10873489.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 20323231012031 its reverse (13021013232302), we get a palindrome (33344244244333).

The spelling of 20323231012031 in words is "twenty trillion, three hundred twenty-three billion, two hundred thirty-one million, twelve thousand, thirty-one".