313212021303 has 4 divisors (see below), whose sum is σ = 417616028408. Its totient is φ = 208808014200.

The previous prime is 313212021301. The next prime is 313212021319. The reversal of 313212021303 is 303120212313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 303120212313 = 3 ⋅101040070771.

It is not a de Polignac number, because 313212021303 - 2¹ = 313212021301 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 313212021303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313212021301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52202003548 + ... + 52202003553.

It is an arithmetic number, because the mean of its divisors is an integer number (104404007102).

Almost surely, 2^313212021303 is an apocalyptic number.

313212021303 is a deficient number, since it is larger than the sum of its proper divisors (104404007105).

313212021303 is a wasteful number, since it uses less digits than its factorization.

313212021303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104404007104.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 313212021303 its reverse (303120212313), we get a palindrome (616332233616).

The spelling of 313212021303 in words is "three hundred thirteen billion, two hundred twelve million, twenty-one thousand, three hundred three".