313122303111 has 4 divisors (see below), whose sum is σ = 417496404152. Its totient is φ = 208748202072.

The previous prime is 313122303019. The next prime is 313122303133. The reversal of 313122303111 is 111303221313.

It is a happy number.

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

It is not a de Polignac number, because 313122303111 - 2¹⁸ = 313122040967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313122303211) 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, 52187050516 + ... + 52187050521.

It is an arithmetic number, because the mean of its divisors is an integer number (104374101038).

Almost surely, 2^313122303111 is an apocalyptic number.

313122303111 is a deficient number, since it is larger than the sum of its proper divisors (104374101041).

313122303111 is a wasteful number, since it uses less digits than its factorization.

313122303111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104374101040.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 313122303111 its reverse (111303221313), we get a palindrome (424425524424).

The spelling of 313122303111 in words is "three hundred thirteen billion, one hundred twenty-two million, three hundred three thousand, one hundred eleven".