115203440000 has 640 divisors, whose sum is σ = 334045071360. Its totient is φ = 39168000000.

The previous prime is 115203439979. The next prime is 115203440021. The reversal of 115203440000 is 44302511.

It is an interprime number because it is at equal distance from previous prime (115203439979) and next prime (115203440021).

It is a tau number, because it is divible by the number of its divisors (640).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1118479949 + ... + 1118480051.

It is an arithmetic number, because the mean of its divisors is an integer number (521945424).

Almost surely, 2^115203440000 is an apocalyptic number.

115203440000 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 115203440000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167022535680).

115203440000 is an abundant number, since it is smaller than the sum of its proper divisors (218841631360).

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

115203440000 is a wasteful number, since it uses less digits than its factorization.

115203440000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220 (or 193 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 115203440000 its reverse (44302511), we get a palindrome (115247742511).

The spelling of 115203440000 in words is "one hundred fifteen billion, two hundred three million, four hundred forty thousand".