17130423561 has 4 divisors (see below), whose sum is σ = 22840564752. Its totient is φ = 11420282372.

The previous prime is 17130423553. The next prime is 17130423571. The reversal of 17130423561 is 16532403171.

17130423561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 17130423561 - 2³ = 17130423553 is a prime.

It is a super-2 number, since 2×17130423561² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (17130423551) 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 in 3 ways as a sum of consecutive naturals, for example, 2855070591 + ... + 2855070596.

It is an arithmetic number, because the mean of its divisors is an integer number (5710141188).

Almost surely, 2^17130423561 is an apocalyptic number.

It is an amenable number.

17130423561 is a deficient number, since it is larger than the sum of its proper divisors (5710141191).

17130423561 is an equidigital number, since it uses as much as digits as its factorization.

17130423561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5710141190.

The product of its (nonzero) digits is 15120, while the sum is 33.

The spelling of 17130423561 in words is "seventeen billion, one hundred thirty million, four hundred twenty-three thousand, five hundred sixty-one".