2120542102 has 8 divisors (see below), whose sum is σ = 3635215056. Its totient is φ = 908803752.

The previous prime is 2120542097. The next prime is 2120542117. The reversal of 2120542102 is 2012450212.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2120542102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75733633 + ... + 75733660.

It is an arithmetic number, because the mean of its divisors is an integer number (454401882).

Almost surely, 2^2120542102 is an apocalyptic number.

2120542102 is a deficient number, since it is larger than the sum of its proper divisors (1514672954).

2120542102 is a wasteful number, since it uses less digits than its factorization.

2120542102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151467302.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 2120542102 is about 46049.3442081426. The cubic root of 2120542102 is about 1284.7411454547.

Adding to 2120542102 its reverse (2012450212), we get a palindrome (4132992314).

The spelling of 2120542102 in words is "two billion, one hundred twenty million, five hundred forty-two thousand, one hundred two".