513523151117 has 2 divisors, whose sum is σ = 513523151118. Its totient is φ = 513523151116.

The previous prime is 513523151107. The next prime is 513523151123. The reversal of 513523151117 is 711151325315.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 438494271721 + 75028879396 = 662189^2 + 273914^2 .

It is a cyclic number.

It is not a de Polignac number, because 513523151117 - 2³⁰ = 512449409293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (513523151107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256761575558 + 256761575559.

It is an arithmetic number, because the mean of its divisors is an integer number (256761575559).

Almost surely, 2^513523151117 is an apocalyptic number.

It is an amenable number.

513523151117 is a deficient number, since it is larger than the sum of its proper divisors (1).

513523151117 is an equidigital number, since it uses as much as digits as its factorization.

513523151117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15750, while the sum is 35.

The spelling of 513523151117 in words is "five hundred thirteen billion, five hundred twenty-three million, one hundred fifty-one thousand, one hundred seventeen".