312021213314311 has 8 divisors (see below), whose sum is σ = 319659881302944. Its totient is φ = 304383897444480.

The previous prime is 312021213314299. The next prime is 312021213314353. The reversal of 312021213314311 is 113413312120213.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 312021213314311 - 2⁷ = 312021213314183 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 312021213314311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312021213314011) 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, 337562515 + ... + 338485588.

It is an arithmetic number, because the mean of its divisors is an integer number (39957485162868).

Almost surely, 2^{312021213314311} is an apocalyptic number.

312021213314311 is a deficient number, since it is larger than the sum of its proper divisors (7638667988633).

312021213314311 is a wasteful number, since it uses less digits than its factorization.

312021213314311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676059401.

The product of its (nonzero) digits is 2592, while the sum is 28.

Adding to 312021213314311 its reverse (113413312120213), we get a palindrome (425434525434524).

The spelling of 312021213314311 in words is "three hundred twelve trillion, twenty-one billion, two hundred thirteen million, three hundred fourteen thousand, three hundred eleven".