12311423223 has 16 divisors (see below), whose sum is σ = 17909496576. Its totient is φ = 7460647040.

The previous prime is 12311423219. The next prime is 12311423227. The reversal of 12311423223 is 32232411321.

It is an interprime number because it is at equal distance from previous prime (12311423219) and next prime (12311423227).

It is not a de Polignac number, because 12311423223 - 2² = 12311423219 is a prime.

It is a super-2 number, since 2×12311423223² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12311423193 and 12311423202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12311423227) 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, 433486 + ... + 461012.

It is an arithmetic number, because the mean of its divisors is an integer number (1119343536).

Almost surely, 2^12311423223 is an apocalyptic number.

12311423223 is a deficient number, since it is larger than the sum of its proper divisors (5598073353).

12311423223 is a wasteful number, since it uses less digits than its factorization.

12311423223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41094.

The product of its digits is 1728, while the sum is 24.

Adding to 12311423223 its reverse (32232411321), we get a palindrome (44543834544).

It can be divided in two parts, 12311 and 423223, that added together give a palindrome (435534).

The spelling of 12311423223 in words is "twelve billion, three hundred eleven million, four hundred twenty-three thousand, two hundred twenty-three".