313212111 has 8 divisors (see below), whose sum is σ = 417958704. Its totient is φ = 208636800.

The previous prime is 313212077. The next prime is 313212227. The reversal of 313212111 is 111212313.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 313212111 - 2¹⁵ = 313179343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313212611) 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 7 ways as a sum of consecutive naturals, for example, 38490 + ... + 45911.

It is an arithmetic number, because the mean of its divisors is an integer number (52244838).

Almost surely, 2^313212111 is an apocalyptic number.

313212111 is a deficient number, since it is larger than the sum of its proper divisors (104746593).

313212111 is a wasteful number, since it uses less digits than its factorization.

313212111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85641.

The product of its digits is 36, while the sum is 15.

The square root of 313212111 is about 17697.7996089909. The cubic root of 313212111 is about 679.1194708812.

Adding to 313212111 its reverse (111212313), we get a palindrome (424424424).

The spelling of 313212111 in words is "three hundred thirteen million, two hundred twelve thousand, one hundred eleven".