2010343021 has 2 divisors, whose sum is σ = 2010343022. Its totient is φ = 2010343020.

The previous prime is 2010343019. The next prime is 2010343057. The reversal of 2010343021 is 1203430102.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1924576900 + 85766121 = 43870^2 + 9261^2 .

It is a cyclic number.

It is not a de Polignac number, because 2010343021 - 2¹ = 2010343019 is a prime.

Together with 2010343019, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 2010342986 and 2010343004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2010343121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005171510 + 1005171511.

It is an arithmetic number, because the mean of its divisors is an integer number (1005171511).

Almost surely, 2^2010343021 is an apocalyptic number.

It is an amenable number.

2010343021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2010343021 is an equidigital number, since it uses as much as digits as its factorization.

2010343021 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 2010343021 is about 44836.8489191647. The cubic root of 2010343021 is about 1262.0892149293.

Adding to 2010343021 its reverse (1203430102), we get a palindrome (3213773123).

The spelling of 2010343021 in words is "two billion, ten million, three hundred forty-three thousand, twenty-one".