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105421068959 is a prime number
BaseRepresentation
bin110001000101110010…
…1011101101010011111
3101002002222100011211112
41202023211131222133
53211400243201314
6120232455212235
710421301205163
oct1421345355237
9332088304745
10105421068959
1140788499488
121852137707b
139c3097875b
14516100cca3
152b2011743e
hex188b95da9f

105421068959 has 2 divisors, whose sum is σ = 105421068960. Its totient is φ = 105421068958.

The previous prime is 105421068887. The next prime is 105421068979. The reversal of 105421068959 is 959860124501.

It is a strong prime.

It is an emirp because it is prime and its reverse (959860124501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 105421068959 - 224 = 105404291743 is a prime.

It is a super-3 number, since 3×1054210689593 (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105421068979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52710534479 + 52710534480.

It is an arithmetic number, because the mean of its divisors is an integer number (52710534480).

Almost surely, 2105421068959 is an apocalyptic number.

105421068959 is a deficient number, since it is larger than the sum of its proper divisors (1).

105421068959 is an equidigital number, since it uses as much as digits as its factorization.

105421068959 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 777600, while the sum is 50.

The spelling of 105421068959 in words is "one hundred five billion, four hundred twenty-one million, sixty-eight thousand, nine hundred fifty-nine".