2120120003 has 4 divisors (see below), whose sum is σ = 2128001760. Its totient is φ = 2112238248.

The previous prime is 2120119951. The next prime is 2120120011. The reversal of 2120120003 is 3000210212.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2120120003 - 2¹⁶ = 2120054467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120120053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3940475 + ... + 3941012.

It is an arithmetic number, because the mean of its divisors is an integer number (532000440).

Almost surely, 2^2120120003 is an apocalyptic number.

2120120003 is a deficient number, since it is larger than the sum of its proper divisors (7881757).

2120120003 is an equidigital number, since it uses as much as digits as its factorization.

2120120003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7881756.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 2120120003 is about 46044.7608637508. The cubic root of 2120120003 is about 1284.6558961943.

Adding to 2120120003 its reverse (3000210212), we get a palindrome (5120330215).

The spelling of 2120120003 in words is "two billion, one hundred twenty million, one hundred twenty thousand, three".