2123120303 has 4 divisors (see below), whose sum is σ = 2126193528. Its totient is φ = 2120047080.

The previous prime is 2123120243. The next prime is 2123120309. The reversal of 2123120303 is 3030213212.

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 2123120303 - 2⁸ = 2123120047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123120309) 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, 1535576 + ... + 1536957.

It is an arithmetic number, because the mean of its divisors is an integer number (531548382).

Almost surely, 2^2123120303 is an apocalyptic number.

2123120303 is a deficient number, since it is larger than the sum of its proper divisors (3073225).

2123120303 is an equidigital number, since it uses as much as digits as its factorization.

2123120303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3073224.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 2123120303 is about 46077.3295992726. The cubic root of 2123120303 is about 1285.2616066160.

Adding to 2123120303 its reverse (3030213212), we get a palindrome (5153333515).

The spelling of 2123120303 in words is "two billion, one hundred twenty-three million, one hundred twenty thousand, three hundred three".