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13120142021321 = 268347931020259
BaseRepresentation
bin1011111011101100010101…
…1001111001001011001001
31201110021101020220120101212
42332323011121321023021
53204430022324140241
643523150545022505
72522620231053206
oct276730531711311
951407336816355
1013120142021321
1141a9248147605
12157a931024a35
137422bb409b6a
1433503817acad
1517b441d42beb
hexbeec56792c9

13120142021321 has 8 divisors (see below), whose sum is σ = 13127783364960. Its totient is φ = 13112502733152.

The previous prime is 13120142021299. The next prime is 13120142021341. The reversal of 13120142021321 is 12312024102131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13120142021321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13120142021341) 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, 12349490 + ... + 13369748.

It is an arithmetic number, because the mean of its divisors is an integer number (1640972920620).

Almost surely, 213120142021321 is an apocalyptic number.

It is an amenable number.

13120142021321 is a deficient number, since it is larger than the sum of its proper divisors (7641343639).

13120142021321 is a wasteful number, since it uses less digits than its factorization.

13120142021321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027735.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 13120142021321 its reverse (12312024102131), we get a palindrome (25432166123452).

The spelling of 13120142021321 in words is "thirteen trillion, one hundred twenty billion, one hundred forty-two million, twenty-one thousand, three hundred twenty-one".

Divisors: 1 2683 4793 1020259 12859619 2737354897 4890101387 13120142021321