2030321045 has 4 divisors (see below), whose sum is σ = 2436385260. Its totient is φ = 1624256832.

The previous prime is 2030320997. The next prime is 2030321047. The reversal of 2030321045 is 5401230302.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1129900996 + 900420049 = 33614^2 + 30007^2 .

It is a cyclic number.

It is not a de Polignac number, because 2030321045 - 2¹⁶ = 2030255509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2030321047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203032100 + ... + 203032109.

It is an arithmetic number, because the mean of its divisors is an integer number (609096315).

Almost surely, 2^2030321045 is an apocalyptic number.

It is an amenable number.

2030321045 is a deficient number, since it is larger than the sum of its proper divisors (406064215).

2030321045 is an equidigital number, since it uses as much as digits as its factorization.

2030321045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406064214.

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

The square root of 2030321045 is about 45059.0839343189. The cubic root of 2030321045 is about 1266.2561628762.

Adding to 2030321045 its reverse (5401230302), we get a palindrome (7431551347).

The spelling of 2030321045 in words is "two billion, thirty million, three hundred twenty-one thousand, forty-five".