2231020031323 has 4 divisors (see below), whose sum is σ = 2231028369208. Its totient is φ = 2231011693440.

The previous prime is 2231020031299. The next prime is 2231020031363. The reversal of 2231020031323 is 3231300201322.

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 2231020031323 - 2⁵ = 2231020031291 is a prime.

It is a super-3 number, since 3×2231020031323³ (a number of 38 digits) contains 333 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 = 2231020031294 and 2231020031303.

It is not an unprimeable number, because it can be changed into a prime (2231020031363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3753798 + ... + 4307323.

It is an arithmetic number, because the mean of its divisors is an integer number (557757092302).

Almost surely, 2^{2231020031323} is an apocalyptic number.

2231020031323 is a deficient number, since it is larger than the sum of its proper divisors (8337885).

2231020031323 is an equidigital number, since it uses as much as digits as its factorization.

2231020031323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8337884.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 2231020031323 its reverse (3231300201322), we get a palindrome (5462320232645).

The spelling of 2231020031323 in words is "two trillion, two hundred thirty-one billion, twenty million, thirty-one thousand, three hundred twenty-three".