212123020321213 has 8 divisors (see below), whose sum is σ = 213059930291456. Its totient is φ = 211187243941200.

The previous prime is 212123020321211. The next prime is 212123020321349. The reversal of 212123020321213 is 312123020321212.

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 212123020321213 - 2¹ = 212123020321211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212123020321211) 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, 283022481 + ... + 283770982.

It is an arithmetic number, because the mean of its divisors is an integer number (26632491286432).

Almost surely, 2^{212123020321213} is an apocalyptic number.

It is an amenable number.

212123020321213 is a deficient number, since it is larger than the sum of its proper divisors (936909970243).

212123020321213 is a wasteful number, since it uses less digits than its factorization.

212123020321213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566795115.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 212123020321213 its reverse (312123020321212), we get a palindrome (524246040642425).

Subtracting 212123020321213 from its reverse (312123020321212), we obtain a palindrome (99999999999999).

The spelling of 212123020321213 in words is "two hundred twelve trillion, one hundred twenty-three billion, twenty million, three hundred twenty-one thousand, two hundred thirteen".