313121230223 has 4 divisors (see below), whose sum is σ = 313124129328. Its totient is φ = 313118331120.

The previous prime is 313121230207. The next prime is 313121230277. The reversal of 313121230223 is 322032121313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322032121313 = 7 ⋅46004588759.

It is a cyclic number.

It is not a de Polignac number, because 313121230223 - 2⁴ = 313121230207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313121233223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1281011 + ... + 1505732.

It is an arithmetic number, because the mean of its divisors is an integer number (78281032332).

Almost surely, 2^313121230223 is an apocalyptic number.

313121230223 is a deficient number, since it is larger than the sum of its proper divisors (2899105).

313121230223 is a wasteful number, since it uses less digits than its factorization.

313121230223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2899104.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 313121230223 its reverse (322032121313), we get a palindrome (635153351536).

The spelling of 313121230223 in words is "three hundred thirteen billion, one hundred twenty-one million, two hundred thirty thousand, two hundred twenty-three".