2320013021 has 8 divisors (see below), whose sum is σ = 2415304920. Its totient is φ = 2225740608.

The previous prime is 2320012997. The next prime is 2320013027. The reversal of 2320013021 is 1203100232.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 329604025 + 1990408996 = 18155^2 + 44614^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2320013021 - 2¹⁸ = 2319750877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2320012987 and 2320013005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2320013027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250226 + ... + 259331.

It is an arithmetic number, because the mean of its divisors is an integer number (301913115).

Almost surely, 2^2320013021 is an apocalyptic number.

It is an amenable number.

2320013021 is a deficient number, since it is larger than the sum of its proper divisors (95291899).

2320013021 is a wasteful number, since it uses less digits than its factorization.

2320013021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509743.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2320013021 is about 48166.5134818787. The cubic root of 2320013021 is about 1323.8236662494.

Adding to 2320013021 its reverse (1203100232), we get a palindrome (3523113253).

The spelling of 2320013021 in words is "two billion, three hundred twenty million, thirteen thousand, twenty-one".