2021322313 has 2 divisors, whose sum is σ = 2021322314. Its totient is φ = 2021322312.

The previous prime is 2021322311. The next prime is 2021322383. The reversal of 2021322313 is 3132231202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1924752384 + 96569929 = 43872^2 + 9827^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021322313 - 2¹ = 2021322311 is a prime.

Together with 2021322311, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2021322311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010661156 + 1010661157.

It is an arithmetic number, because the mean of its divisors is an integer number (1010661157).

Almost surely, 2^2021322313 is an apocalyptic number.

It is an amenable number.

2021322313 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021322313 is an equidigital number, since it uses as much as digits as its factorization.

2021322313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2021322313 is about 44959.1182409086. The cubic root of 2021322313 is about 1264.3826371960.

Adding to 2021322313 its reverse (3132231202), we get a palindrome (5153553515).

The spelling of 2021322313 in words is "two billion, twenty-one million, three hundred twenty-two thousand, three hundred thirteen".