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129440042991223 is a prime number
BaseRepresentation
bin11101011011100110011011…
…110010000011111001110111
3121222022100101011002221122121
4131123212123302003321313
5113431221202001204343
61135143533531540411
736156506634521206
oct3533463362037167
9558270334087577
10129440042991223
1138275239856708
12126264205ba707
13572c1b3880433
1423d6d080b723d
15ee7074da5aed
hex75b99bc83e77

129440042991223 has 2 divisors, whose sum is σ = 129440042991224. Its totient is φ = 129440042991222.

The previous prime is 129440042991199. The next prime is 129440042991227. The reversal of 129440042991223 is 322199240044921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 129440042991223 - 29 = 129440042990711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129440042991227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64720021495611 + 64720021495612.

It is an arithmetic number, because the mean of its divisors is an integer number (64720021495612).

Almost surely, 2129440042991223 is an apocalyptic number.

129440042991223 is a deficient number, since it is larger than the sum of its proper divisors (1).

129440042991223 is an equidigital number, since it uses as much as digits as its factorization.

129440042991223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2239488, while the sum is 52.

The spelling of 129440042991223 in words is "one hundred twenty-nine trillion, four hundred forty billion, forty-two million, nine hundred ninety-one thousand, two hundred twenty-three".