3123112131223 has 16 divisors (see below), whose sum is σ = 3666724600320. Its totient is φ = 2603902013856.

The previous prime is 3123112131211. The next prime is 3123112131289. The reversal of 3123112131223 is 3221312113213.

It is a cyclic number.

It is not a de Polignac number, because 3123112131223 - 2²⁵ = 3123078576791 is a prime.

It is a super-3 number, since 3×3123112131223³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3123112131323) 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, 657961 + ... + 2584402.

It is an arithmetic number, because the mean of its divisors is an integer number (229170287520).

Almost surely, 2^{3123112131223} is an apocalyptic number.

3123112131223 is a deficient number, since it is larger than the sum of its proper divisors (543612469097).

3123112131223 is a wasteful number, since it uses less digits than its factorization.

3123112131223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3246126.

The product of its digits is 1296, while the sum is 25.

Adding to 3123112131223 its reverse (3221312113213), we get a palindrome (6344424244436).

The spelling of 3123112131223 in words is "three trillion, one hundred twenty-three billion, one hundred twelve million, one hundred thirty-one thousand, two hundred twenty-three".