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10123505477 is a prime number
BaseRepresentation
bin10010110110110100…
…00110111101000101
3222010112011100210022
421123122012331011
5131213104133402
64352313504525
7505604243141
oct113332067505
928115140708
1010123505477
114325500558
121b66412145
13c54470b37
146c0712221
153e3b572a2
hex25b686f45

10123505477 has 2 divisors, whose sum is σ = 10123505478. Its totient is φ = 10123505476.

The previous prime is 10123505467. The next prime is 10123505549. The reversal of 10123505477 is 77450532101.

10123505477 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8352863236 + 1770642241 = 91394^2 + 42079^2 .

It is a cyclic number.

It is not a de Polignac number, because 10123505477 - 28 = 10123505221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10123505417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5061752738 + 5061752739.

It is an arithmetic number, because the mean of its divisors is an integer number (5061752739).

Almost surely, 210123505477 is an apocalyptic number.

It is an amenable number.

10123505477 is a deficient number, since it is larger than the sum of its proper divisors (1).

10123505477 is an equidigital number, since it uses as much as digits as its factorization.

10123505477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29400, while the sum is 35.

The spelling of 10123505477 in words is "ten billion, one hundred twenty-three million, five hundred five thousand, four hundred seventy-seven".