2120031323 has 4 divisors (see below), whose sum is σ = 2160031968. Its totient is φ = 2080030680.

The previous prime is 2120031313. The next prime is 2120031349. The reversal of 2120031323 is 3231300212.

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 2120031323 - 2¹² = 2120027227 is a prime.

It is a super-2 number, since 2×2120031323² = 8989065621002260658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120031313) 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, 20000243 + ... + 20000348.

It is an arithmetic number, because the mean of its divisors is an integer number (540007992).

Almost surely, 2^2120031323 is an apocalyptic number.

2120031323 is a deficient number, since it is larger than the sum of its proper divisors (40000645).

2120031323 is an equidigital number, since it uses as much as digits as its factorization.

2120031323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40000644.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 2120031323 is about 46043.7978776729. The cubic root of 2120031323 is about 1284.6379844922.

Adding to 2120031323 its reverse (3231300212), we get a palindrome (5351331535).

The spelling of 2120031323 in words is "two billion, one hundred twenty million, thirty-one thousand, three hundred twenty-three".