312310111211 has 6 divisors (see below), whose sum is σ = 363299517180. Its totient is φ = 267694380996.

The previous prime is 312310111159. The next prime is 312310111259. The reversal of 312310111211 is 112111013213.

It is not a de Polignac number, because 312310111211 - 2¹⁴ = 312310094827 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 312310111211.

It is not an unprimeable number, because it can be changed into a prime (312310114211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3186837821 + ... + 3186837918.

It is an arithmetic number, because the mean of its divisors is an integer number (60549919530).

Almost surely, 2^312310111211 is an apocalyptic number.

312310111211 is a deficient number, since it is larger than the sum of its proper divisors (50989405969).

312310111211 is an equidigital number, since it uses as much as digits as its factorization.

312310111211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6373675753 (or 6373675746 counting only the distinct ones).

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

Adding to 312310111211 its reverse (112111013213), we get a palindrome (424421124424).

The spelling of 312310111211 in words is "three hundred twelve billion, three hundred ten million, one hundred eleven thousand, two hundred eleven".