312020322211 has 4 divisors (see below), whose sum is σ = 336021885472. Its totient is φ = 288018758952.

The previous prime is 312020322203. The next prime is 312020322227. The reversal of 312020322211 is 112223020213.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 312020322211 - 2³ = 312020322203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (312020329211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12000781611 + ... + 12000781636.

It is an arithmetic number, because the mean of its divisors is an integer number (84005471368).

Almost surely, 2^312020322211 is an apocalyptic number.

312020322211 is a deficient number, since it is larger than the sum of its proper divisors (24001563261).

312020322211 is a wasteful number, since it uses less digits than its factorization.

312020322211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24001563260.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 312020322211 its reverse (112223020213), we get a palindrome (424243342424).

The spelling of 312020322211 in words is "three hundred twelve billion, twenty million, three hundred twenty-two thousand, two hundred eleven".