2031223440323 has 32 divisors (see below), whose sum is σ = 2535377932800. Its totient is φ = 1580933088000.

The previous prime is 2031223440319. The next prime is 2031223440349. The reversal of 2031223440323 is 3230443221302.

It is not a de Polignac number, because 2031223440323 - 2² = 2031223440319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2031223440353) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 311486303 + ... + 311492823.

It is an arithmetic number, because the mean of its divisors is an integer number (79230560400).

Almost surely, 2^{2031223440323} is an apocalyptic number.

2031223440323 is a deficient number, since it is larger than the sum of its proper divisors (504154492477).

2031223440323 is a wasteful number, since it uses less digits than its factorization.

2031223440323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10619.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 2031223440323 its reverse (3230443221302), we get a palindrome (5261666661625).

The spelling of 2031223440323 in words is "two trillion, thirty-one billion, two hundred twenty-three million, four hundred forty thousand, three hundred twenty-three".