2123000203 has 4 divisors (see below), whose sum is σ = 2123889768. Its totient is φ = 2122110640.

The previous prime is 2123000197. The next prime is 2123000227. The reversal of 2123000203 is 3020003212.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2123000203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2123000233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 441193 + ... + 445978.

It is an arithmetic number, because the mean of its divisors is an integer number (530972442).

Almost surely, 2^2123000203 is an apocalyptic number.

2123000203 is a deficient number, since it is larger than the sum of its proper divisors (889565).

2123000203 is an equidigital number, since it uses as much as digits as its factorization.

2123000203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889564.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 2123000203 is about 46076.0263369141. The cubic root of 2123000203 is about 1285.2373714012.

Adding to 2123000203 its reverse (3020003212), we get a palindrome (5143003415).

The spelling of 2123000203 in words is "two billion, one hundred twenty-three million, two hundred three", and thus it is an aban number.