313212223013 has 4 divisors (see below), whose sum is σ = 313213509420. Its totient is φ = 313210936608.

The previous prime is 313212222943. The next prime is 313212223039. The reversal of 313212223013 is 310322212313.

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, and also an emirpimes, since its reverse is a distinct semiprime: 310322212313 = 456377 ⋅679969.

It can be written as a sum of positive squares in 2 ways, for example, as 6259657924 + 306952565089 = 79118^2 + 554033^2 .

It is a cyclic number.

It is not a de Polignac number, because 313212223013 - 2¹⁰ = 313212221989 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 313212223013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313212223913) 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, 153920 + ... + 806297.

It is an arithmetic number, because the mean of its divisors is an integer number (78303377355).

Almost surely, 2^313212223013 is an apocalyptic number.

It is an amenable number.

313212223013 is a deficient number, since it is larger than the sum of its proper divisors (1286407).

313212223013 is an equidigital number, since it uses as much as digits as its factorization.

313212223013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1286406.

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

Adding to 313212223013 its reverse (310322212313), we get a palindrome (623534435326).

The spelling of 313212223013 in words is "three hundred thirteen billion, two hundred twelve million, two hundred twenty-three thousand, thirteen".