313011331223 has 4 divisors (see below), whose sum is σ = 313014615120. Its totient is φ = 313008047328.

The previous prime is 313011331219. The next prime is 313011331247. The reversal of 313011331223 is 322133110313.

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 313011331223 - 2² = 313011331219 is a prime.

It is a super-2 number, since 2×313011331223² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313011331123) 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, 1494563 + ... + 1691076.

It is an arithmetic number, because the mean of its divisors is an integer number (78253653780).

Almost surely, 2^313011331223 is an apocalyptic number.

313011331223 is a deficient number, since it is larger than the sum of its proper divisors (3283897).

313011331223 is an equidigital number, since it uses as much as digits as its factorization.

313011331223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3283896.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 313011331223 its reverse (322133110313), we get a palindrome (635144441536).

The spelling of 313011331223 in words is "three hundred thirteen billion, eleven million, three hundred thirty-one thousand, two hundred twenty-three".