311101123223 has 6 divisors (see below), whose sum is σ = 341954127312. Its totient is φ = 282819202820.

The previous prime is 311101123219. The next prime is 311101123247. The reversal of 311101123223 is 322321101113.

It is a happy number.

It is not a de Polignac number, because 311101123223 - 2² = 311101123219 is a prime.

It is a super-2 number, since 2×311101123223² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 311101123195 and 311101123204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311101120223) 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 5 ways as a sum of consecutive naturals, for example, 1285541711 + ... + 1285541952.

It is an arithmetic number, because the mean of its divisors is an integer number (56992354552).

Almost surely, 2^311101123223 is an apocalyptic number.

311101123223 is a deficient number, since it is larger than the sum of its proper divisors (30853004089).

311101123223 is a wasteful number, since it uses less digits than its factorization.

311101123223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2571083685 (or 2571083674 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 311101123223 its reverse (322321101113), we get a palindrome (633422224336).

The spelling of 311101123223 in words is "three hundred eleven billion, one hundred one million, one hundred twenty-three thousand, two hundred twenty-three".