313121212313111 has 16 divisors (see below), whose sum is σ = 313491956244480. Its totient is φ = 312750751711200.

The previous prime is 313121212313093. The next prime is 313121212313141. The reversal of 313121212313111 is 111313212121313.

It is a cyclic number.

It is not a de Polignac number, because 313121212313111 - 2⁶ = 313121212313047 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 (313121212313141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29570418005 + ... + 29570428593.

It is an arithmetic number, because the mean of its divisors is an integer number (19593247265280).

Almost surely, 2^{313121212313111} is an apocalyptic number.

313121212313111 is a deficient number, since it is larger than the sum of its proper divisors (370743931369).

313121212313111 is a wasteful number, since it uses less digits than its factorization.

313121212313111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20926.

The product of its digits is 648, while the sum is 26.

Adding to 313121212313111 its reverse (111313212121313), we get a palindrome (424434424434424).

The spelling of 313121212313111 in words is "three hundred thirteen trillion, one hundred twenty-one billion, two hundred twelve million, three hundred thirteen thousand, one hundred eleven".