313212011111 has 4 divisors (see below), whose sum is σ = 319121671752. Its totient is φ = 307302350472.

The previous prime is 313212011087. The next prime is 313212011131. The reversal of 313212011111 is 111110212313.

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 313212011111 - 2¹⁴ = 313211994727 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 313212011111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313212011131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2954830241 + ... + 2954830346.

It is an arithmetic number, because the mean of its divisors is an integer number (79780417938).

Almost surely, 2^313212011111 is an apocalyptic number.

313212011111 is a deficient number, since it is larger than the sum of its proper divisors (5909660641).

313212011111 is an equidigital number, since it uses as much as digits as its factorization.

313212011111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5909660640.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 313212011111 its reverse (111110212313), we get a palindrome (424322223424).

The spelling of 313212011111 in words is "three hundred thirteen billion, two hundred twelve million, eleven thousand, one hundred eleven".