312020231320211 has 4 divisors (see below), whose sum is σ = 312021524625552. Its totient is φ = 312018938014872.

The previous prime is 312020231320199. The next prime is 312020231320241. The reversal of 312020231320211 is 112023132020213.

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 312020231320211 - 2⁴⁶ = 241651487142547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312020231320241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 646290716 + ... + 646773321.

It is an arithmetic number, because the mean of its divisors is an integer number (78005381156388).

Almost surely, 2^{312020231320211} is an apocalyptic number.

312020231320211 is a deficient number, since it is larger than the sum of its proper divisors (1293305341).

312020231320211 is a wasteful number, since it uses less digits than its factorization.

312020231320211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1293305340.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 312020231320211 its reverse (112023132020213), we get a palindrome (424043363340424).

The spelling of 312020231320211 in words is "three hundred twelve trillion, twenty billion, two hundred thirty-one million, three hundred twenty thousand, two hundred eleven".