115020202551100 has 288 divisors, whose sum is σ = 311766595660800. Its totient is φ = 35783162419200.

The previous prime is 115020202551041. The next prime is 115020202551151. The reversal of 115020202551100 is 1155202020511.

It is a happy number.

It is a super-2 number, since 2×115020202551100² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9756564006 + ... + 9756575794.

It is an arithmetic number, because the mean of its divisors is an integer number (1082522901600).

Almost surely, 2^{115020202551100} is an apocalyptic number.

115020202551100 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 115020202551100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155883297830400).

115020202551100 is an abundant number, since it is smaller than the sum of its proper divisors (196746393109700).

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

115020202551100 is a wasteful number, since it uses less digits than its factorization.

115020202551100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14093 (or 14086 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 25.

Adding to 115020202551100 its reverse (1155202020511), we get a palindrome (116175404571611).

The spelling of 115020202551100 in words is "one hundred fifteen trillion, twenty billion, two hundred two million, five hundred fifty-one thousand, one hundred".