115203051020 has 48 divisors (see below), whose sum is σ = 256214544768. Its totient is φ = 43360880640.

The previous prime is 115203050983. The next prime is 115203051023. The reversal of 115203051020 is 20150302511.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 115203050983 and 115203051001.

It is not an unprimeable number, because it can be changed into a prime (115203051023) 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, 1590800 + ... + 1661640.

It is an arithmetic number, because the mean of its divisors is an integer number (5337803016).

Almost surely, 2^115203051020 is an apocalyptic number.

115203051020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115203051020 is an abundant number, since it is smaller than the sum of its proper divisors (141011493748).

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

115203051020 is a wasteful number, since it uses less digits than its factorization.

115203051020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75650 (or 75648 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

Adding to 115203051020 its reverse (20150302511), we get a palindrome (135353353531).

The spelling of 115203051020 in words is "one hundred fifteen billion, two hundred three million, fifty-one thousand, twenty".