17012534123420 has 96 divisors (see below), whose sum is σ = 39148541139456. Its totient is φ = 6158754604800.

The previous prime is 17012534123401. The next prime is 17012534123423. The reversal of 17012534123420 is 2432143521071.

It is a happy number.

It is a super-3 number, since 3×17012534123420³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17012534123423) 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 in 31 ways as a sum of consecutive naturals, for example, 47993954 + ... + 48347126.

It is an arithmetic number, because the mean of its divisors is an integer number (407797303536).

Almost surely, 2^{17012534123420} is an apocalyptic number.

17012534123420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 17012534123420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19574270569728).

17012534123420 is an abundant number, since it is smaller than the sum of its proper divisors (22136007016036).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

17012534123420 is a wasteful number, since it uses less digits than its factorization.

17012534123420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354171 (or 354169 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

Adding to 17012534123420 its reverse (2432143521071), we get a palindrome (19444677644491).

The spelling of 17012534123420 in words is "seventeen trillion, twelve billion, five hundred thirty-four million, one hundred twenty-three thousand, four hundred twenty".