2301322021 has 2 divisors, whose sum is σ = 2301322022. Its totient is φ = 2301322020.

The previous prime is 2301322019. The next prime is 2301322043. The reversal of 2301322021 is 1202231032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2166437025 + 134884996 = 46545^2 + 11614^2 .

It is a cyclic number.

It is not a de Polignac number, because 2301322021 - 2¹ = 2301322019 is a prime.

Together with 2301322019, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 2301321986 and 2301322004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2301322321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1150661010 + 1150661011.

It is an arithmetic number, because the mean of its divisors is an integer number (1150661011).

Almost surely, 2^2301322021 is an apocalyptic number.

It is an amenable number.

2301322021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2301322021 is an equidigital number, since it uses as much as digits as its factorization.

2301322021 is an evil number, because the sum of its binary digits is even.

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

The square root of 2301322021 is about 47972.0962748138. The cubic root of 2301322021 is about 1320.2589828927.

Adding to 2301322021 its reverse (1202231032), we get a palindrome (3503553053).

The spelling of 2301322021 in words is "two billion, three hundred one million, three hundred twenty-two thousand, twenty-one".