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13101523 is a prime number
BaseRepresentation
bin110001111110…
…100111010011
3220122121220121
4301332213103
511323222043
61144451111
7216234601
oct61764723
926577817
1013101523
117439406
124479a97
1329394a6
141a50871
15123bded
hexc7e9d3

13101523 has 2 divisors, whose sum is σ = 13101524. Its totient is φ = 13101522.

The previous prime is 13101521. The next prime is 13101551. The reversal of 13101523 is 32510131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13101523 - 21 = 13101521 is a prime.

Together with 13101521, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 13101497 and 13101506.

It is not a weakly prime, because it can be changed into another prime (13101521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6550761 + 6550762.

It is an arithmetic number, because the mean of its divisors is an integer number (6550762).

Almost surely, 213101523 is an apocalyptic number.

13101523 is a deficient number, since it is larger than the sum of its proper divisors (1).

13101523 is an equidigital number, since it uses as much as digits as its factorization.

13101523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 13101523 is about 3619.6026024966. The cubic root of 13101523 is about 235.7439708820.

Adding to 13101523 its reverse (32510131), we get a palindrome (45611654).

The spelling of 13101523 in words is "thirteen million, one hundred one thousand, five hundred twenty-three".