2302021213 has 4 divisors (see below), whose sum is σ = 2315327868. Its totient is φ = 2288714560.

The previous prime is 2302021207. The next prime is 2302021237. The reversal of 2302021213 is 3121202032.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1995140889 + 306880324 = 44667^2 + 17518^2 .

It is a cyclic number.

It is not a de Polignac number, because 2302021213 - 2⁵ = 2302021181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2302021013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6653068 + ... + 6653413.

It is an arithmetic number, because the mean of its divisors is an integer number (578831967).

Almost surely, 2^2302021213 is an apocalyptic number.

It is an amenable number.

2302021213 is a deficient number, since it is larger than the sum of its proper divisors (13306655).

2302021213 is a wasteful number, since it uses less digits than its factorization.

2302021213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13306654.

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

The square root of 2302021213 is about 47979.3832077904. The cubic root of 2302021213 is about 1320.3926772126.

Adding to 2302021213 its reverse (3121202032), we get a palindrome (5423223245).

The spelling of 2302021213 in words is "two billion, three hundred two million, twenty-one thousand, two hundred thirteen".