20121330323213 has 8 divisors (see below), whose sum is σ = 23004493602432. Its totient is φ = 17240338923696.

The previous prime is 20121330323161. The next prime is 20121330323273. The reversal of 20121330323213 is 31232303312102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20121330323213 - 2⁸ = 20121330322957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20121330323273) 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, 542950070 + ... + 542987127.

It is an arithmetic number, because the mean of its divisors is an integer number (2875561700304).

Almost surely, 2^{20121330323213} is an apocalyptic number.

It is an amenable number.

20121330323213 is a deficient number, since it is larger than the sum of its proper divisors (2883163279219).

20121330323213 is a wasteful number, since it uses less digits than its factorization.

20121330323213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1085939851.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 20121330323213 its reverse (31232303312102), we get a palindrome (51353633635315).

The spelling of 20121330323213 in words is "twenty trillion, one hundred twenty-one billion, three hundred thirty million, three hundred twenty-three thousand, two hundred thirteen".