2030443421 has 2 divisors, whose sum is σ = 2030443422. Its totient is φ = 2030443420.

The previous prime is 2030443397. The next prime is 2030443447. The reversal of 2030443421 is 1243440302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2028151225 + 2292196 = 45035^2 + 1514^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2030443421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2030445421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1015221710 + 1015221711.

It is an arithmetic number, because the mean of its divisors is an integer number (1015221711).

Almost surely, 2^2030443421 is an apocalyptic number.

It is an amenable number.

2030443421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2030443421 is an equidigital number, since it uses as much as digits as its factorization.

2030443421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 2030443421 is about 45060.4418642339. The cubic root of 2030443421 is about 1266.2816032290.

Adding to 2030443421 its reverse (1243440302), we get a palindrome (3273883723).

The spelling of 2030443421 in words is "two billion, thirty million, four hundred forty-three thousand, four hundred twenty-one".