2030203421 has 2 divisors, whose sum is σ = 2030203422. Its totient is φ = 2030203420.

The previous prime is 2030203379. The next prime is 2030203429. The reversal of 2030203421 is 1243020302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1473715321 + 556488100 = 38389^2 + 23590^2 .

It is a cyclic number.

It is not a de Polignac number, because 2030203421 - 2¹⁰ = 2030202397 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2030203421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2030203429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1015101710 + 1015101711.

It is an arithmetic number, because the mean of its divisors is an integer number (1015101711).

Almost surely, 2^2030203421 is an apocalyptic number.

It is an amenable number.

2030203421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2030203421 is an equidigital number, since it uses as much as digits as its factorization.

2030203421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 2030203421 is about 45057.7786958035. The cubic root of 2030203421 is about 1266.2317094379.

Adding to 2030203421 its reverse (1243020302), we get a palindrome (3273223723).

The spelling of 2030203421 in words is "two billion, thirty million, two hundred three thousand, four hundred twenty-one".