313123312223 has 4 divisors (see below), whose sum is σ = 313126048680. Its totient is φ = 313120575768.

The previous prime is 313123312211. The next prime is 313123312261. The reversal of 313123312223 is 322213321313.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 313123312223 - 2²⁰ = 313122263647 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313123312192 and 313123312201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313123312423) 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, 1188740 + ... + 1428057.

It is an arithmetic number, because the mean of its divisors is an integer number (78281512170).

Almost surely, 2^313123312223 is an apocalyptic number.

313123312223 is a deficient number, since it is larger than the sum of its proper divisors (2736457).

313123312223 is a wasteful number, since it uses less digits than its factorization.

313123312223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2736456.

The product of its digits is 3888, while the sum is 26.

Adding to 313123312223 its reverse (322213321313), we get a palindrome (635336633536).

The spelling of 313123312223 in words is "three hundred thirteen billion, one hundred twenty-three million, three hundred twelve thousand, two hundred twenty-three".