2115020042 has 16 divisors (see below), whose sum is σ = 3190227072. Its totient is φ = 1051626240.

The previous prime is 2115020041. The next prime is 2115020051. The reversal of 2115020042 is 2400205112.

It is a self number, because there is not a number n which added to its sum of digits gives 2115020042.

It is not an unprimeable number, because it can be changed into a prime (2115020041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 309353 + ... + 316115.

It is an arithmetic number, because the mean of its divisors is an integer number (199389192).

Almost surely, 2^2115020042 is an apocalyptic number.

2115020042 is a deficient number, since it is larger than the sum of its proper divisors (1075207030).

2115020042 is a wasteful number, since it uses less digits than its factorization.

2115020042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7613.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 2115020042 is about 45989.3470490721. The cubic root of 2115020042 is about 1283.6249867219.

Adding to 2115020042 its reverse (2400205112), we get a palindrome (4515225154).

The spelling of 2115020042 in words is "two billion, one hundred fifteen million, twenty thousand, forty-two".