2030521305 has 32 divisors (see below), whose sum is σ = 3399895296. Its totient is φ = 1032863744.

The previous prime is 2030521289. The next prime is 2030521309. The reversal of 2030521305 is 5031250302.

It is a cyclic number.

It is not a de Polignac number, because 2030521305 - 2⁴ = 2030521289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2030521309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 113449 + ... + 130121.

It is an arithmetic number, because the mean of its divisors is an integer number (106246728).

Almost surely, 2^2030521305 is an apocalyptic number.

It is an amenable number.

2030521305 is a deficient number, since it is larger than the sum of its proper divisors (1369373991).

2030521305 is a wasteful number, since it uses less digits than its factorization.

2030521305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17057.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 2030521305 is about 45061.3060729491. The cubic root of 2030521305 is about 1266.2977937508.

Adding to 2030521305 its reverse (5031250302), we get a palindrome (7061771607).

The spelling of 2030521305 in words is "two billion, thirty million, five hundred twenty-one thousand, three hundred five".