312102212120311 has 16 divisors (see below), whose sum is σ = 313247583866880. Its totient is φ = 310958793532800.

The previous prime is 312102212120273. The next prime is 312102212120317. The reversal of 312102212120311 is 113021212201213.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312102212120311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312102212120317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2042704626 + ... + 2042857408.

It is an arithmetic number, because the mean of its divisors is an integer number (19577973991680).

Almost surely, 2^{312102212120311} is an apocalyptic number.

312102212120311 is a deficient number, since it is larger than the sum of its proper divisors (1145371746569).

312102212120311 is a wasteful number, since it uses less digits than its factorization.

312102212120311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159126.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 312102212120311 its reverse (113021212201213), we get a palindrome (425123424321524).

The spelling of 312102212120311 in words is "three hundred twelve trillion, one hundred two billion, two hundred twelve million, one hundred twenty thousand, three hundred eleven".