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23101999993 is a prime number
BaseRepresentation
bin10101100000111111…
…001000101101111001
32012122000111012021101
4111200333020231321
5334303102444433
614340220011401
71445326521442
oct254077105571
965560435241
1023101999993
119885527586
124588990b61
1322422530a7
1411922802c9
1590325c07d
hex560fc8b79

23101999993 has 2 divisors, whose sum is σ = 23101999994. Its totient is φ = 23101999992.

The previous prime is 23101999919. The next prime is 23102000027. The reversal of 23101999993 is 39999910132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18805459689 + 4296540304 = 137133^2 + 65548^2 .

It is a cyclic number.

It is not a de Polignac number, because 23101999993 - 217 = 23101868921 is a prime.

It is not a weakly prime, because it can be changed into another prime (23101999913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11550999996 + 11550999997.

It is an arithmetic number, because the mean of its divisors is an integer number (11550999997).

Almost surely, 223101999993 is an apocalyptic number.

It is an amenable number.

23101999993 is a deficient number, since it is larger than the sum of its proper divisors (1).

23101999993 is an equidigital number, since it uses as much as digits as its factorization.

23101999993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1062882, while the sum is 55.

The spelling of 23101999993 in words is "twenty-three billion, one hundred one million, nine hundred ninety-nine thousand, nine hundred ninety-three".