311310322223 has 4 divisors (see below), whose sum is σ = 324845553648. Its totient is φ = 297775090800.

The previous prime is 311310322217. The next prime is 311310322231. The reversal of 311310322223 is 322223013113.

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 311310322223 - 2⁸ = 311310321967 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 13535231401 = 311310322223 / (3 + 1 + 1 + 3 + 1 + 0 + 3 + 2 + 2 + 2 + 2 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311310322273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6767615678 + ... + 6767615723.

It is an arithmetic number, because the mean of its divisors is an integer number (81211388412).

Almost surely, 2^311310322223 is an apocalyptic number.

311310322223 is a deficient number, since it is larger than the sum of its proper divisors (13535231425).

311310322223 is a wasteful number, since it uses less digits than its factorization.

311310322223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13535231424.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 311310322223 its reverse (322223013113), we get a palindrome (633533335336).

The spelling of 311310322223 in words is "three hundred eleven billion, three hundred ten million, three hundred twenty-two thousand, two hundred twenty-three".