115017131232 has 72 divisors (see below), whose sum is σ = 327503731464. Its totient is φ = 38289371904.

The previous prime is 115017131191. The next prime is 115017131291. The reversal of 115017131232 is 232131710511.

115017131232 is a `hidden beast` number, since 1 + 1 + 501 + 7 + 131 + 23 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a junction number, because it is equal to n+sod(n) for n = 115017131196 and 115017131205.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 35698 + ... + 480945.

It is an arithmetic number, because the mean of its divisors is an integer number (4548662937).

Almost surely, 2^115017131232 is an apocalyptic number.

115017131232 is a gapful number since it is divisible by the number (12) 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 115017131232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163751865732).

115017131232 is an abundant number, since it is smaller than the sum of its proper divisors (212486600232).

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

115017131232 is a wasteful number, since it uses less digits than its factorization.

115017131232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517432 (or 517421 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

Adding to 115017131232 its reverse (232131710511), we get a palindrome (347148841743).

The spelling of 115017131232 in words is "one hundred fifteen billion, seventeen million, one hundred thirty-one thousand, two hundred thirty-two".