313321221011 has 4 divisors (see below), whose sum is σ = 313381515072. Its totient is φ = 313260926952.

The previous prime is 313321220981. The next prime is 313321221013. The reversal of 313321221011 is 110122123313.

It is a happy number.

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 313321221011 - 2¹⁰ = 313321219987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313321221013) 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, 30139235 + ... + 30149628.

It is an arithmetic number, because the mean of its divisors is an integer number (78345378768).

Almost surely, 2^313321221011 is an apocalyptic number.

313321221011 is a deficient number, since it is larger than the sum of its proper divisors (60294061).

313321221011 is an equidigital number, since it uses as much as digits as its factorization.

313321221011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60294060.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 313321221011 its reverse (110122123313), we get a palindrome (423443344324).

The spelling of 313321221011 in words is "three hundred thirteen billion, three hundred twenty-one million, two hundred twenty-one thousand, eleven".