312312312111 has 8 divisors (see below), whose sum is σ = 416459291824. Its totient is φ = 208186770240.

The previous prime is 312312312101. The next prime is 312312312119. The reversal of 312312312111 is 111213213213.

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

It is not a de Polignac number, because 312312312111 - 2⁵ = 312312312079 is a prime.

It is a super-2 number, since 2×312312312111² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312312312119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5325436 + ... + 5383761.

It is an arithmetic number, because the mean of its divisors is an integer number (52057411478).

Almost surely, 2^312312312111 is an apocalyptic number.

312312312111 is a deficient number, since it is larger than the sum of its proper divisors (104146979713).

312312312111 is a wasteful number, since it uses less digits than its factorization.

312312312111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10718921.

The product of its digits is 216, while the sum is 21.

Adding to 312312312111 its reverse (111213213213), we get a palindrome (423525525324).

The spelling of 312312312111 in words is "three hundred twelve billion, three hundred twelve million, three hundred twelve thousand, one hundred eleven".