3123211123313 has 4 divisors (see below), whose sum is σ = 3123215225460. Its totient is φ = 3123207021168.

The previous prime is 3123211123301. The next prime is 3123211123327. The reversal of 3123211123313 is 3133211123213.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2398930127104 + 724280996209 = 1548848^2 + 851047^2 .

It is a cyclic number.

It is not a de Polignac number, because 3123211123313 - 2¹⁴ = 3123211106929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3123211123363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 535970 + ... + 2556107.

It is an arithmetic number, because the mean of its divisors is an integer number (780803806365).

Almost surely, 2^{3123211123313} is an apocalyptic number.

It is an amenable number.

3123211123313 is a deficient number, since it is larger than the sum of its proper divisors (4102147).

3123211123313 is a wasteful number, since it uses less digits than its factorization.

3123211123313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4102146.

The product of its digits is 1944, while the sum is 26.

Adding to 3123211123313 its reverse (3133211123213), we get a palindrome (6256422246526).

The spelling of 3123211123313 in words is "three trillion, one hundred twenty-three billion, two hundred eleven million, one hundred twenty-three thousand, three hundred thirteen".