2320323021 has 12 divisors (see below), whose sum is σ = 3442161372. Its totient is φ = 1505074176.

The previous prime is 2320323011. The next prime is 2320323037. The reversal of 2320323021 is 1203230232.

It is a happy number.

2320323021 is a `hidden beast` number, since 2 + 320 + 323 + 0 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1061847396 + 1258475625 = 32586^2 + 35475^2 .

It is not a de Polignac number, because 2320323021 - 2¹⁷ = 2320191949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2320322985 and 2320323003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2320323011) 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, 3483636 + ... + 3484301.

It is an arithmetic number, because the mean of its divisors is an integer number (286846781).

Almost surely, 2^2320323021 is an apocalyptic number.

It is an amenable number.

2320323021 is a deficient number, since it is larger than the sum of its proper divisors (1121838351).

2320323021 is a wasteful number, since it uses less digits than its factorization.

2320323021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6967980 (or 6967977 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 2320323021 is about 48169.7313777023. The cubic root of 2320323021 is about 1323.8826267029.

Adding to 2320323021 its reverse (1203230232), we get a palindrome (3523553253).

It can be divided in two parts, 2 and 320323021, that added together give a palindrome (320323023).

The spelling of 2320323021 in words is "two billion, three hundred twenty million, three hundred twenty-three thousand, twenty-one".