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1223110087 is a prime number
BaseRepresentation
bin100100011100111…
…0010110111000111
310011020111102121121
41020321302313013
510001104010322
6321211254411
742211156423
oct11071626707
93136442547
101223110087
11578460791
122a174a407
131665263a4
14b8627b83
15725a2ec7
hex48e72dc7

1223110087 has 2 divisors, whose sum is σ = 1223110088. Its totient is φ = 1223110086.

The previous prime is 1223109989. The next prime is 1223110121. The reversal of 1223110087 is 7800113221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1223110087 - 215 = 1223077319 is a prime.

It is a super-2 number, since 2×12231100872 = 2991996569842295138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1223110387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611555043 + 611555044.

It is an arithmetic number, because the mean of its divisors is an integer number (611555044).

Almost surely, 21223110087 is an apocalyptic number.

1223110087 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223110087 is an equidigital number, since it uses as much as digits as its factorization.

1223110087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 1223110087 is about 34972.9908214897. The cubic root of 1223110087 is about 1069.4369434022.

The spelling of 1223110087 in words is "one billion, two hundred twenty-three million, one hundred ten thousand, eighty-seven".