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12561088411 is a prime number
BaseRepresentation
bin10111011001011001…
…01111111110011011
31012102101220101221201
423230230233332123
5201211114312121
65434231415031
7623163330004
oct135454577633
935371811851
1012561088411
115366452703
122526824477
1312524880c1
148723561ab
154d7b53e91
hex2ecb2ff9b

12561088411 has 2 divisors, whose sum is σ = 12561088412. Its totient is φ = 12561088410.

The previous prime is 12561088399. The next prime is 12561088439. The reversal of 12561088411 is 11488016521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12561088411 - 221 = 12558991259 is a prime.

It is not a weakly prime, because it can be changed into another prime (12561088471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6280544205 + 6280544206.

It is an arithmetic number, because the mean of its divisors is an integer number (6280544206).

Almost surely, 212561088411 is an apocalyptic number.

12561088411 is a deficient number, since it is larger than the sum of its proper divisors (1).

12561088411 is an equidigital number, since it uses as much as digits as its factorization.

12561088411 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15360, while the sum is 37.

The spelling of 12561088411 in words is "twelve billion, five hundred sixty-one million, eighty-eight thousand, four hundred eleven".