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13202012987 is a prime number
BaseRepresentation
bin11000100101110011…
…01011101100111011
31021002001220202011222
430102321223230323
5204014203403422
610022004542255
7645105154532
oct142271535473
937061822158
1013202012987
115665212839
1226853b198b
1313251b2307
148d3513319
15524057842
hex312e6bb3b

13202012987 has 2 divisors, whose sum is σ = 13202012988. Its totient is φ = 13202012986.

The previous prime is 13202012947. The next prime is 13202013001. The reversal of 13202012987 is 78921020231.

It is a strong prime.

It is an emirp because it is prime and its reverse (78921020231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13202012987 - 212 = 13202008891 is a prime.

It is not a weakly prime, because it can be changed into another prime (13202012947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6601006493 + 6601006494.

It is an arithmetic number, because the mean of its divisors is an integer number (6601006494).

Almost surely, 213202012987 is an apocalyptic number.

13202012987 is a deficient number, since it is larger than the sum of its proper divisors (1).

13202012987 is an equidigital number, since it uses as much as digits as its factorization.

13202012987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 35.

The spelling of 13202012987 in words is "thirteen billion, two hundred two million, twelve thousand, nine hundred eighty-seven".