313301220121 has 4 divisors (see below), whose sum is σ = 324104710500. Its totient is φ = 302497729744.

The previous prime is 313301220059. The next prime is 313301220137. The reversal of 313301220121 is 121022103313.

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 248665784896 + 64635435225 = 498664^2 + 254235^2 .

It is a cyclic number.

It is not a de Polignac number, because 313301220121 - 2¹¹ = 313301218073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (313301224121) 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, 5401745146 + ... + 5401745203.

It is an arithmetic number, because the mean of its divisors is an integer number (81026177625).

Almost surely, 2^313301220121 is an apocalyptic number.

It is an amenable number.

313301220121 is a deficient number, since it is larger than the sum of its proper divisors (10803490379).

313301220121 is a wasteful number, since it uses less digits than its factorization.

313301220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10803490378.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 313301220121 its reverse (121022103313), we get a palindrome (434323323434).

The spelling of 313301220121 in words is "three hundred thirteen billion, three hundred one million, two hundred twenty thousand, one hundred twenty-one".