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1112102291 is a prime number
BaseRepresentation
bin100001001001001…
…0101010110010011
32212111121122112202
41002102111112103
54234144233131
6302204113415
736362466506
oct10222252623
92774548482
101112102291
11520830a03
1227053586b
1314952a3c1
14a79ad13d
1567976bcb
hex42495593

1112102291 has 2 divisors, whose sum is σ = 1112102292. Its totient is φ = 1112102290.

The previous prime is 1112102287. The next prime is 1112102347. The reversal of 1112102291 is 1922012111.

It is a weak prime.

It is an emirp because it is prime and its reverse (1922012111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1112102291 - 22 = 1112102287 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1112102231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556051145 + 556051146.

It is an arithmetic number, because the mean of its divisors is an integer number (556051146).

Almost surely, 21112102291 is an apocalyptic number.

1112102291 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112102291 is an equidigital number, since it uses as much as digits as its factorization.

1112102291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 20.

The square root of 1112102291 is about 33348.1977174180. The cubic root of 1112102291 is about 1036.0520597538.

The spelling of 1112102291 in words is "one billion, one hundred twelve million, one hundred two thousand, two hundred ninety-one".