2120123003 has 8 divisors (see below), whose sum is σ = 2215197600. Its totient is φ = 2025289728.

The previous prime is 2120122951. The next prime is 2120123011. The reversal of 2120123003 is 3003210212.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2120123003 - 2¹⁴ = 2120106619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120125003) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 42248 + ... + 77621.

It is an arithmetic number, because the mean of its divisors is an integer number (276899700).

Almost surely, 2^2120123003 is an apocalyptic number.

2120123003 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2120123003 is a deficient number, since it is larger than the sum of its proper divisors (95074597).

2120123003 is a wasteful number, since it uses less digits than its factorization.

2120123003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120661.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2120123003 is about 46044.7934407355. The cubic root of 2120123003 is about 1284.6565021294.

Adding to 2120123003 its reverse (3003210212), we get a palindrome (5123333215).

The spelling of 2120123003 in words is "two billion, one hundred twenty million, one hundred twenty-three thousand, three".