312311323113203 has 2 divisors, whose sum is σ = 312311323113204. Its totient is φ = 312311323113202.

The previous prime is 312311323113169. The next prime is 312311323113217. The reversal of 312311323113203 is 302311323113213.

It is a strong prime.

It is an emirp because it is prime and its reverse (302311323113213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 312311323113203 - 2⁸ = 312311323112947 is a prime.

It is not a weakly prime, because it can be changed into another prime (312311323103203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156155661556601 + 156155661556602.

It is an arithmetic number, because the mean of its divisors is an integer number (156155661556602).

Almost surely, 2^{312311323113203} is an apocalyptic number.

312311323113203 is a deficient number, since it is larger than the sum of its proper divisors (1).

312311323113203 is an equidigital number, since it uses as much as digits as its factorization.

312311323113203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 29.

Adding to 312311323113203 its reverse (302311323113213), we get a palindrome (614622646226416).

The spelling of 312311323113203 in words is "three hundred twelve trillion, three hundred eleven billion, three hundred twenty-three million, one hundred thirteen thousand, two hundred three".