20320210133231 has 8 divisors (see below), whose sum is σ = 21209335402464. Its totient is φ = 19431554686720.

The previous prime is 20320210133189. The next prime is 20320210133257. The reversal of 20320210133231 is 13233101202302.

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 20320210133231 - 2¹⁰ = 20320210132207 is a prime.

It is a super-2 number, since 2×20320210133231² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20320210133197 and 20320210133206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20320210133261) 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 7 ways as a sum of consecutive naturals, for example, 117367286 + ... + 117540291.

It is an arithmetic number, because the mean of its divisors is an integer number (2651166925308).

Almost surely, 2^{20320210133231} is an apocalyptic number.

20320210133231 is a deficient number, since it is larger than the sum of its proper divisors (889125269233).

20320210133231 is a wasteful number, since it uses less digits than its factorization.

20320210133231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234911361.

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

Adding to 20320210133231 its reverse (13233101202302), we get a palindrome (33553311335533).

The spelling of 20320210133231 in words is "twenty trillion, three hundred twenty billion, two hundred ten million, one hundred thirty-three thousand, two hundred thirty-one".