312021320221011 has 8 divisors (see below), whose sum is σ = 416028956520384. Its totient is φ = 208013948701160.

The previous prime is 312021320220947. The next prime is 312021320221019. The reversal of 312021320221011 is 110122023120213.

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 312021320221011 - 2⁶ = 312021320220947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (312021320221019) 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, 63428721 + ... + 68170706.

It is an arithmetic number, because the mean of its divisors is an integer number (52003619565048).

Almost surely, 2^{312021320221011} is an apocalyptic number.

312021320221011 is a deficient number, since it is larger than the sum of its proper divisors (104007636299373).

312021320221011 is a wasteful number, since it uses less digits than its factorization.

312021320221011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132389761.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 312021320221011 its reverse (110122023120213), we get a palindrome (422143343341224).

The spelling of 312021320221011 in words is "three hundred twelve trillion, twenty-one billion, three hundred twenty million, two hundred twenty-one thousand, eleven".