2120045530 has 16 divisors (see below), whose sum is σ = 3822442344. Its totient is φ = 846604800.

The previous prime is 2120045491. The next prime is 2120045533. The reversal of 2120045530 is 355400212.

It can be written as a sum of positive squares in 4 ways, for example, as 1520922001 + 599123529 = 38999^2 + 24477^2 .

It is not an unprimeable number, because it can be changed into a prime (2120045533) 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, 170367 + ... + 182386.

Almost surely, 2^2120045530 is an apocalyptic number.

2120045530 is a deficient number, since it is larger than the sum of its proper divisors (1702396814).

2120045530 is a wasteful number, since it uses less digits than its factorization.

2120045530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353361.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 2120045530 is about 46043.9521544361. The cubic root of 2120045530 is about 1284.6408540742.

Adding to 2120045530 its reverse (355400212), we get a palindrome (2475445742).

The spelling of 2120045530 in words is "two billion, one hundred twenty million, forty-five thousand, five hundred thirty".