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10521252112087 is a prime number
BaseRepresentation
bin1001100100011010101101…
…1111101010011011010111
31101020211012011001010012101
42121012223133222123113
52334340011020041322
634213221350502531
72134064302241263
oct231065337523327
941224164033171
1010521252112087
11339704658a912
12121b10a064a47
135b41c41bcc42
14285334a510a3
15133a366c3327
hex991ab7ea6d7

10521252112087 has 2 divisors, whose sum is σ = 10521252112088. Its totient is φ = 10521252112086.

The previous prime is 10521252111949. The next prime is 10521252112117. The reversal of 10521252112087 is 78021125212501.

It is a strong prime.

It is an emirp because it is prime and its reverse (78021125212501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10521252112087 - 223 = 10521243723479 is a prime.

It is a super-2 number, since 2×105212521120872 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10521252118087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5260626056043 + 5260626056044.

It is an arithmetic number, because the mean of its divisors is an integer number (5260626056044).

Almost surely, 210521252112087 is an apocalyptic number.

10521252112087 is a deficient number, since it is larger than the sum of its proper divisors (1).

10521252112087 is an equidigital number, since it uses as much as digits as its factorization.

10521252112087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22400, while the sum is 37.

Adding to 10521252112087 its reverse (78021125212501), we get a palindrome (88542377324588).

The spelling of 10521252112087 in words is "ten trillion, five hundred twenty-one billion, two hundred fifty-two million, one hundred twelve thousand, eighty-seven".