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11111100100987 is a prime number
BaseRepresentation
bin1010000110110000000100…
…1011001011000101111011
31110100012200200002120112111
42201230001023023011323
52424021013111212422
635344211404153151
72224515263360305
oct241540113130573
943305620076474
1011111100100987
1135a4211383197
1212b54a4b387b7
13627a06808893
142a5acc8c2975
1514405a157a77
hexa1b012cb17b

11111100100987 has 2 divisors, whose sum is σ = 11111100100988. Its totient is φ = 11111100100986.

The previous prime is 11111100100921. The next prime is 11111100101009. The reversal of 11111100100987 is 78900100111111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-11111100100987 is a prime.

It is not a weakly prime, because it can be changed into another prime (11111100170987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555550050493 + 5555550050494.

It is an arithmetic number, because the mean of its divisors is an integer number (5555550050494).

Almost surely, 211111100100987 is an apocalyptic number.

11111100100987 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111100100987 is an equidigital number, since it uses as much as digits as its factorization.

11111100100987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 31.

The spelling of 11111100100987 in words is "eleven trillion, one hundred eleven billion, one hundred million, one hundred thousand, nine hundred eighty-seven".