2005120030 has 32 divisors (see below), whose sum is σ = 3737975040. Its totient is φ = 773498880.

The previous prime is 2005119979. The next prime is 2005120031. The reversal of 2005120030 is 300215002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2005120031) 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 15 ways as a sum of consecutive naturals, for example, 283902 + ... + 290878.

It is an arithmetic number, because the mean of its divisors is an integer number (116811720).

Almost surely, 2^2005120030 is an apocalyptic number.

2005120030 is a deficient number, since it is larger than the sum of its proper divisors (1732855010).

2005120030 is a wasteful number, since it uses less digits than its factorization.

2005120030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8004.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 2005120030 is about 44778.5666362826. The cubic root of 2005120030 is about 1260.9952726691.

Adding to 2005120030 its reverse (300215002), we get a palindrome (2305335032).

The spelling of 2005120030 in words is "two billion, five million, one hundred twenty thousand, thirty".