313201213123 has 4 divisors (see below), whose sum is σ = 314568904240. Its totient is φ = 311833522008.

The previous prime is 313201213097. The next prime is 313201213133. The reversal of 313201213123 is 321312102313.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313201213123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313201213094 and 313201213103.

It is not an unprimeable number, because it can be changed into a prime (313201213133) 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, 683845215 + ... + 683845672.

It is an arithmetic number, because the mean of its divisors is an integer number (78642226060).

Almost surely, 2^313201213123 is an apocalyptic number.

313201213123 is a deficient number, since it is larger than the sum of its proper divisors (1367691117).

313201213123 is a wasteful number, since it uses less digits than its factorization.

313201213123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1367691116.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 313201213123 its reverse (321312102313), we get a palindrome (634513315436).

The spelling of 313201213123 in words is "three hundred thirteen billion, two hundred one million, two hundred thirteen thousand, one hundred twenty-three".