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57123215351 is a prime number
BaseRepresentation
bin110101001100110011…
…110001011111110111
312110110000102000002122
4311030303301133313
51413442020342401
642124140430155
74061365214306
oct651463613767
9173400360078
1057123215351
1122253625194
12b0a254835b
135504757257
142a9c7a243d
151744dec21b
hexd4ccf17f7

57123215351 has 2 divisors, whose sum is σ = 57123215352. Its totient is φ = 57123215350.

The previous prime is 57123215339. The next prime is 57123215353. The reversal of 57123215351 is 15351232175.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57123215351 - 210 = 57123214327 is a prime.

Together with 57123215353, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57123215353) 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, 28561607675 + 28561607676.

It is an arithmetic number, because the mean of its divisors is an integer number (28561607676).

Almost surely, 257123215351 is an apocalyptic number.

57123215351 is a deficient number, since it is larger than the sum of its proper divisors (1).

57123215351 is an equidigital number, since it uses as much as digits as its factorization.

57123215351 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31500, while the sum is 35.

The spelling of 57123215351 in words is "fifty-seven billion, one hundred twenty-three million, two hundred fifteen thousand, three hundred fifty-one".