2313020221 has 16 divisors (see below), whose sum is σ = 2495750400. Its totient is φ = 2135870208.

The previous prime is 2313020219. The next prime is 2313020243. The reversal of 2313020221 is 1220203132.

It is not a de Polignac number, because 2313020221 - 2¹ = 2313020219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2313020195 and 2313020204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2313020261) 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 15 ways as a sum of consecutive naturals, for example, 184800 + ... + 196918.

It is an arithmetic number, because the mean of its divisors is an integer number (155984400).

Almost surely, 2^2313020221 is an apocalyptic number.

It is an amenable number.

2313020221 is a deficient number, since it is larger than the sum of its proper divisors (182730179).

2313020221 is a wasteful number, since it uses less digits than its factorization.

2313020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12348.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2313020221 is about 48093.8688504055. The cubic root of 2313020221 is about 1322.4922727812.

Adding to 2313020221 its reverse (1220203132), we get a palindrome (3533223353).

The spelling of 2313020221 in words is "two billion, three hundred thirteen million, twenty thousand, two hundred twenty-one".