311223343444103 has 16 divisors (see below), whose sum is σ = 336621133739520. Its totient is φ = 286855230941664.

The previous prime is 311223343444093. The next prime is 311223343444109. The reversal of 311223343444103 is 301444343322113.

It is a cyclic number.

It is not a de Polignac number, because 311223343444103 - 2²² = 311223339249799 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 (311223343444109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 463483301 + ... + 464154302.

It is an arithmetic number, because the mean of its divisors is an integer number (21038820858720).

Almost surely, 2^{311223343444103} is an apocalyptic number.

311223343444103 is a deficient number, since it is larger than the sum of its proper divisors (25397790295417).

311223343444103 is a wasteful number, since it uses less digits than its factorization.

311223343444103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 927638158.

The product of its (nonzero) digits is 248832, while the sum is 38.

Adding to 311223343444103 its reverse (301444343322113), we get a palindrome (612667686766216).

The spelling of 311223343444103 in words is "three hundred eleven trillion, two hundred twenty-three billion, three hundred forty-three million, four hundred forty-four thousand, one hundred three".