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1311421304124 = 223312142789853
BaseRepresentation
bin10011000101010110110…
…011010000110100111100
311122101000012112211002000
4103011112303100310330
5132441242323212444
62442243021502300
7163514146106211
oct23052663206474
94571005484060
101311421304124
11466197157008
121921b4411990
13968883b2269
144768a3a7b08
15241a6985469
hex13156cd0d3c

1311421304124 has 24 divisors (see below), whose sum is σ = 3399981159120. Its totient is φ = 437140434672.

The previous prime is 1311421304111. The next prime is 1311421304143. The reversal of 1311421304124 is 4214031241131.

It is a happy number.

1311421304124 is a `hidden beast` number, since 1 + 3 + 114 + 2 + 130 + 412 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6071394819 + ... + 6071395034.

It is an arithmetic number, because the mean of its divisors is an integer number (141665881630).

Almost surely, 21311421304124 is an apocalyptic number.

It is an amenable number.

1311421304124 is an abundant number, since it is smaller than the sum of its proper divisors (2088559854996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1311421304124 is a wasteful number, since it uses less digits than its factorization.

1311421304124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12142789866 (or 12142789858 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

Adding to 1311421304124 its reverse (4214031241131), we get a palindrome (5525452545255).

The spelling of 1311421304124 in words is "one trillion, three hundred eleven billion, four hundred twenty-one million, three hundred four thousand, one hundred twenty-four".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 12142789853 24285579706 36428369559 48571159412 72856739118 109285108677 145713478236 218570217354 327855326031 437140434708 655710652062 1311421304124