311223013221233 has 16 divisors (see below), whose sum is σ = 316291300166400. Its totient is φ = 306182994848640.

The previous prime is 311223013221179. The next prime is 311223013221271. The reversal of 311223013221233 is 332122310322113.

It is a cyclic number.

It is not a de Polignac number, because 311223013221233 - 2¹⁴ = 311223013204849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 311223013221196 and 311223013221205.

It is not an unprimeable number, because it can be changed into a prime (311223013121233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1172263058 + ... + 1172528516.

It is an arithmetic number, because the mean of its divisors is an integer number (19768206260400).

Almost surely, 2^{311223013221233} is an apocalyptic number.

It is an amenable number.

311223013221233 is a deficient number, since it is larger than the sum of its proper divisors (5068286945167).

311223013221233 is a wasteful number, since it uses less digits than its factorization.

311223013221233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318632.

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 311223013221233 its reverse (332122310322113), we get a palindrome (643345323543346).

The spelling of 311223013221233 in words is "three hundred eleven trillion, two hundred twenty-three billion, thirteen million, two hundred twenty-one thousand, two hundred thirty-three".