312203003423 has 4 divisors (see below), whose sum is σ = 312844077840. Its totient is φ = 311561929008.

The previous prime is 312203003377. The next prime is 312203003443. The reversal of 312203003423 is 324300302213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324300302213 = 188911 ⋅1716683.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312203003423 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 (312203003443) 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, 320536478 + ... + 320537451.

It is an arithmetic number, because the mean of its divisors is an integer number (78211019460).

Almost surely, 2^312203003423 is an apocalyptic number.

312203003423 is a deficient number, since it is larger than the sum of its proper divisors (641074417).

312203003423 is an equidigital number, since it uses as much as digits as its factorization.

312203003423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641074416.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 312203003423 its reverse (324300302213), we get a palindrome (636503305636).

The spelling of 312203003423 in words is "three hundred twelve billion, two hundred three million, three thousand, four hundred twenty-three".