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13132101221 = 831553101879
BaseRepresentation
bin11000011101011101…
…11111011001100101
31020220012100212021022
430032232333121211
5203343304214341
610011030300525
7643266006251
oct141656773145
936805325238
1013132101221
115629802018
122665ab7745
1313138749c5
148c8115261
1551cd47e4b
hex30ebbf665

13132101221 has 8 divisors (see below), whose sum is σ = 13299007680. Its totient is φ = 12965401792.

The previous prime is 13132101209. The next prime is 13132101259. The reversal of 13132101221 is 12210123131.

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 13132101221 - 214 = 13132084837 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13132101221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13132101271) 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, 77960 + ... + 179838.

It is an arithmetic number, because the mean of its divisors is an integer number (1662375960).

Almost surely, 213132101221 is an apocalyptic number.

It is an amenable number.

13132101221 is a deficient number, since it is larger than the sum of its proper divisors (166906459).

13132101221 is a wasteful number, since it uses less digits than its factorization.

13132101221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103515.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 13132101221 its reverse (12210123131), we get a palindrome (25342224352).

The spelling of 13132101221 in words is "thirteen billion, one hundred thirty-two million, one hundred one thousand, two hundred twenty-one".

Divisors: 1 83 1553 101879 128899 8455957 158218087 13132101221