31212020310211 has 8 divisors (see below), whose sum is σ = 33614589463280. Its totient is φ = 28809686087712.

The previous prime is 31212020310157. The next prime is 31212020310227. The reversal of 31212020310211 is 11201302021213.

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 31212020310211 - 2³¹ = 31209872826563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31212020310281) 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 7 ways as a sum of consecutive naturals, for example, 58456656 + ... + 58988173.

It is an arithmetic number, because the mean of its divisors is an integer number (4201823682910).

Almost surely, 2^{31212020310211} is an apocalyptic number.

31212020310211 is a deficient number, since it is larger than the sum of its proper divisors (2402569153069).

31212020310211 is a wasteful number, since it uses less digits than its factorization.

31212020310211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117465285.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 31212020310211 its reverse (11201302021213), we get a palindrome (42413322331424).

The spelling of 31212020310211 in words is "thirty-one trillion, two hundred twelve billion, twenty million, three hundred ten thousand, two hundred eleven".