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331211123100013 = 13479435971220027
BaseRepresentation
bin100101101001111000001100…
…1010101101000100101101101
31121102201110210122102111000211
41023103300121111220211231
5321403030340003200023
63132232142302422421
7126523133251520332
oct11323603125504555
91542643718374024
10331211123100013
1196596937374302
1231192b26b91a11
13112a70c86c7340
145bb09bd6a2989
152845864acba0d
hex12d3c1956896d

331211123100013 has 16 divisors (see below), whose sum is σ = 357442046599680. Its totient is φ = 305087822053056.

The previous prime is 331211123100001. The next prime is 331211123100037. The reversal of 331211123100013 is 310001321112133.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-331211123100013 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 (331211123100313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 270868506 + ... + 272088532.

It is an arithmetic number, because the mean of its divisors is an integer number (22340127912480).

Almost surely, 2331211123100013 is an apocalyptic number.

It is an amenable number.

331211123100013 is a deficient number, since it is larger than the sum of its proper divisors (26230923499667).

331211123100013 is a wasteful number, since it uses less digits than its factorization.

331211123100013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1264116.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 331211123100013 its reverse (310001321112133), we get a palindrome (641212444212146).

The spelling of 331211123100013 in words is "three hundred thirty-one trillion, two hundred eleven billion, one hundred twenty-three million, one hundred thousand, thirteen".

Divisors: 1 13 479 6227 43597 566761 1220027 15860351 20882963 271478519 584392933 7597108129 53189517119 691463722547 25477778700001 331211123100013