2030530421 has 2 divisors, whose sum is σ = 2030530422. Its totient is φ = 2030530420.

The previous prime is 2030530387. The next prime is 2030530427. The reversal of 2030530421 is 1240350302.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1682148196 + 348382225 = 41014^2 + 18665^2 .

It is a cyclic number.

It is not a de Polignac number, because 2030530421 - 2⁶ = 2030530357 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2030530393 and 2030530402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2030530427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1015265210 + 1015265211.

It is an arithmetic number, because the mean of its divisors is an integer number (1015265211).

Almost surely, 2^2030530421 is an apocalyptic number.

It is an amenable number.

2030530421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2030530421 is an equidigital number, since it uses as much as digits as its factorization.

2030530421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 2030530421 is about 45061.4072239206. The cubic root of 2030530421 is about 1266.2996887574.

Adding to 2030530421 its reverse (1240350302), we get a palindrome (3270880723).

The spelling of 2030530421 in words is "two billion, thirty million, five hundred thirty thousand, four hundred twenty-one".