115131232000 has 144 divisors (see below), whose sum is σ = 287161265664. Its totient is φ = 45995520000.

The previous prime is 115131231983. The next prime is 115131232001. The reversal of 115131232000 is 232131511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115131232001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33950305 + ... + 33953695.

It is an arithmetic number, because the mean of its divisors is an integer number (1994175456).

Almost surely, 2^115131232000 is an apocalyptic number.

115131232000 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 115131232000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143580632832).

115131232000 is an abundant number, since it is smaller than the sum of its proper divisors (172030033664).

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

115131232000 is an equidigital number, since it uses as much as digits as its factorization.

115131232000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4483 (or 4459 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

Adding to 115131232000 its reverse (232131511), we get a palindrome (115363363511).

The spelling of 115131232000 in words is "one hundred fifteen billion, one hundred thirty-one million, two hundred thirty-two thousand".