201302021213 has 4 divisors (see below), whose sum is σ = 201306944508. Its totient is φ = 201297097920.

The previous prime is 201302021209. The next prime is 201302021243. The reversal of 201302021213 is 312120203102.

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 154211719204 + 47090302009 = 392698^2 + 217003^2 .

It is a cyclic number.

It is not a de Polignac number, because 201302021213 - 2² = 201302021209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201302021191 and 201302021200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201302021243) 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, 2399798 + ... + 2482263.

It is an arithmetic number, because the mean of its divisors is an integer number (50326736127).

Almost surely, 2^201302021213 is an apocalyptic number.

It is an amenable number.

201302021213 is a deficient number, since it is larger than the sum of its proper divisors (4923295).

201302021213 is an equidigital number, since it uses as much as digits as its factorization.

201302021213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4923294.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 201302021213 its reverse (312120203102), we get a palindrome (513422224315).

The spelling of 201302021213 in words is "two hundred one billion, three hundred two million, twenty-one thousand, two hundred thirteen".