3121320232223 has 4 divisors (see below), whose sum is σ = 3121324300248. Its totient is φ = 3121316164200.

The previous prime is 3121320232207. The next prime is 3121320232229. The reversal of 3121320232223 is 3222320231213.

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 is a cyclic number.

It is not a de Polignac number, because 3121320232223 - 2⁴ = 3121320232207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3121320232192 and 3121320232201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121320232229) 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, 494861 + ... + 2547062.

It is an arithmetic number, because the mean of its divisors is an integer number (780331075062).

Almost surely, 2^{3121320232223} is an apocalyptic number.

3121320232223 is a deficient number, since it is larger than the sum of its proper divisors (4068025).

3121320232223 is a wasteful number, since it uses less digits than its factorization.

3121320232223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4068024.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 3121320232223 its reverse (3222320231213), we get a palindrome (6343640463436).

The spelling of 3121320232223 in words is "three trillion, one hundred twenty-one billion, three hundred twenty million, two hundred thirty-two thousand, two hundred twenty-three".