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13121212321302 = 232186868720217
BaseRepresentation
bin1011111011110000010100…
…1100110000111000010110
31201110101010211212102221220
42332330011030300320112
53204434220323240202
643523445101151210
72522655605340261
oct276740514607026
951411124772856
1013121212321302
1141a9747316848
12157ab8b55b506
1374242c08c267
143350da387cd8
1517b4a5cadabc
hexbef05330e16

13121212321302 has 8 divisors (see below), whose sum is σ = 26242424642616. Its totient is φ = 4373737440432.

The previous prime is 13121212321297. The next prime is 13121212321367. The reversal of 13121212321302 is 20312321212131.

13121212321302 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

13121212321302 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1093434360103 + ... + 1093434360114.

It is an arithmetic number, because the mean of its divisors is an integer number (3280303080327).

Almost surely, 213121212321302 is an apocalyptic number.

13121212321302 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13121212321302 is a wasteful number, since it uses less digits than its factorization.

13121212321302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2186868720222.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 13121212321302 its reverse (20312321212131), we get a palindrome (33433533533433).

The spelling of 13121212321302 in words is "thirteen trillion, one hundred twenty-one billion, two hundred twelve million, three hundred twenty-one thousand, three hundred two".

Divisors: 1 2 3 6 2186868720217 4373737440434 6560606160651 13121212321302