2045021130305 has 8 divisors (see below), whose sum is σ = 2479324587432. Its totient is φ = 1619150750208.

The previous prime is 2045021130239. The next prime is 2045021130307. The reversal of 2045021130305 is 5030311205402.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9488318464 + 2035532811841 = 97408^2 + 1426721^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2045021130305 - 2¹² = 2045021126209 is a prime.

It is a super-2 number, since 2×2045021130305² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2045021130307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2108268722 + ... + 2108269691.

It is an arithmetic number, because the mean of its divisors is an integer number (309915573429).

Almost surely, 2^{2045021130305} is an apocalyptic number.

It is an amenable number.

2045021130305 is a deficient number, since it is larger than the sum of its proper divisors (434303457127).

2045021130305 is an equidigital number, since it uses as much as digits as its factorization.

2045021130305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4216538515.

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 2045021130305 its reverse (5030311205402), we get a palindrome (7075332335707).

The spelling of 2045021130305 in words is "two trillion, forty-five billion, twenty-one million, one hundred thirty thousand, three hundred five".