2321310203 has 4 divisors (see below), whose sum is σ = 2457857880. Its totient is φ = 2184762528.

The previous prime is 2321310157. The next prime is 2321310217. The reversal of 2321310203 is 3020131232.

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 2321310203 - 2¹² = 2321306107 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 136547659 = 2321310203 / (2 + 3 + 2 + 1 + 3 + 1 + 0 + 2 + 0 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2321310223) 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, 68273813 + ... + 68273846.

It is an arithmetic number, because the mean of its divisors is an integer number (614464470).

Almost surely, 2^2321310203 is an apocalyptic number.

2321310203 is a deficient number, since it is larger than the sum of its proper divisors (136547677).

2321310203 is a wasteful number, since it uses less digits than its factorization.

2321310203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136547676.

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

The square root of 2321310203 is about 48179.9772000776. The cubic root of 2321310203 is about 1324.0703488130.

Adding to 2321310203 its reverse (3020131232), we get a palindrome (5341441435).

The spelling of 2321310203 in words is "two billion, three hundred twenty-one million, three hundred ten thousand, two hundred three".