313120220213 has 4 divisors (see below), whose sum is σ = 313400543820. Its totient is φ = 312839896608.

The previous prime is 313120220201. The next prime is 313120220221. The reversal of 313120220213 is 312022021313.

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

It can be written as a sum of positive squares in 2 ways, for example, as 139217041924 + 173903178289 = 373118^2 + 417017^2 .

It is a cyclic number.

It is not a de Polignac number, because 313120220213 - 2²⁰ = 313119171637 is a prime.

It is a super-2 number, since 2×313120220213² (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 (313120520213) 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, 140160128 + ... + 140162361.

It is an arithmetic number, because the mean of its divisors is an integer number (78350135955).

Almost surely, 2^313120220213 is an apocalyptic number.

It is an amenable number.

313120220213 is a deficient number, since it is larger than the sum of its proper divisors (280323607).

313120220213 is a wasteful number, since it uses less digits than its factorization.

313120220213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280323606.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 313120220213 its reverse (312022021313), we get a palindrome (625142241526).

The spelling of 313120220213 in words is "three hundred thirteen billion, one hundred twenty million, two hundred twenty thousand, two hundred thirteen".