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212313031230121 = 9714711487963383
BaseRepresentation
bin110000010001100011111010…
…110011101100001010101001
31000211201221001012012021020121
4300101203322303230022221
5210312014041443330441
62031315132101123241
762502052560021223
oct6021437263541251
91024657035167217
10212313031230121
11617164a615a518
121b98b8306b9521
139161057494c03
143a600112bd413
151982b386dddd1
hexc118facec2a9

212313031230121 has 8 divisors (see below), whose sum is σ = 214647645922304. Its totient is φ = 209981392467840.

The previous prime is 212313031230109. The next prime is 212313031230151. The reversal of 212313031230121 is 121032130313212.

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 212313031230121 - 25 = 212313031230089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212313031230151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 743839005 + ... + 744124378.

It is an arithmetic number, because the mean of its divisors is an integer number (26830955740288).

Almost surely, 2212313031230121 is an apocalyptic number.

It is an amenable number.

212313031230121 is a deficient number, since it is larger than the sum of its proper divisors (2334614692183).

212313031230121 is a wasteful number, since it uses less digits than its factorization.

212313031230121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1487964951.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 212313031230121 its reverse (121032130313212), we get a palindrome (333345161543333).

The spelling of 212313031230121 in words is "two hundred twelve trillion, three hundred thirteen billion, thirty-one million, two hundred thirty thousand, one hundred twenty-one".

Divisors: 1 97 1471 142687 1487963383 144332448151 2188794136393 212313031230121