2120231323 has 12 divisors (see below), whose sum is σ = 2501133552. Its totient is φ = 1791741840.

The previous prime is 2120231297. The next prime is 2120231327. The reversal of 2120231323 is 3231320212.

It is not a de Polignac number, because 2120231323 - 2⁹ = 2120230811 is a prime.

It is a super-4 number, since 4×2120231323⁴ (a number of 38 digits) contains 4444 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2120231323.

It is not an unprimeable number, because it can be changed into a prime (2120231327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 301240 + ... + 308197.

It is an arithmetic number, because the mean of its divisors is an integer number (208427796).

Almost surely, 2^2120231323 is an apocalyptic number.

2120231323 is a deficient number, since it is larger than the sum of its proper divisors (380902229).

2120231323 is an equidigital number, since it uses as much as digits as its factorization.

2120231323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609522 (or 609515 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2120231323 is about 46045.9696716227. The cubic root of 2120231323 is about 1284.6783800460.

Adding to 2120231323 its reverse (3231320212), we get a palindrome (5351551535).

Subtracting 2120231323 from its reverse (3231320212), we obtain a square (1111088889 = 33333²).

It can be divided in two parts, 21202 and 31323, that added together give a palindrome (52525).

The spelling of 2120231323 in words is "two billion, one hundred twenty million, two hundred thirty-one thousand, three hundred twenty-three".