312102032111 has 12 divisors (see below), whose sum is σ = 318258455088. Its totient is φ = 306062575104.

The previous prime is 312102032089. The next prime is 312102032129. The reversal of 312102032111 is 111230201213.

It is a de Polignac number, because none of the positive numbers 2^k-312102032111 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 312102032111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312102032161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5909126 + ... + 5961708.

It is an arithmetic number, because the mean of its divisors is an integer number (26521537924).

Almost surely, 2^312102032111 is an apocalyptic number.

312102032111 is a deficient number, since it is larger than the sum of its proper divisors (6156422977).

312102032111 is an equidigital number, since it uses as much as digits as its factorization.

312102032111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54802 (or 54749 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 312102032111 its reverse (111230201213), we get a palindrome (423332233324).

The spelling of 312102032111 in words is "three hundred twelve billion, one hundred two million, thirty-two thousand, one hundred eleven".