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231130003010020 = 22535099329254399
BaseRepresentation
bin110100100011011000100101…
…101110011111000111100100
31010022100210221022100102010121
4310203120211232133013210
5220243313221232310040
62135323354010531324
766453406640065012
oct6443304556370744
91108323838312117
10231130003010020
1167710758174944
1221b0a662436b44
139bc760938355a
144110a750678b2
151bac34d839c4a
hexd23625b9f1e4

231130003010020 has 24 divisors (see below), whose sum is σ = 485386836480000. Its totient is φ = 92449366888032.

The previous prime is 231130003009951. The next prime is 231130003010029. The reversal of 231130003010020 is 20010300031132.

It is a junction number, because it is equal to n+sod(n) for n = 231130003009976 and 231130003010003.

It is not an unprimeable number, because it can be changed into a prime (231130003010029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163925220 + ... + 165329179.

It is an arithmetic number, because the mean of its divisors is an integer number (20224451520000).

Almost surely, 2231130003010020 is an apocalyptic number.

231130003010020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231130003010020 is an abundant number, since it is smaller than the sum of its proper divisors (254256833469980).

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

231130003010020 is a wasteful number, since it uses less digits than its factorization.

231130003010020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329289507 (or 329289505 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 231130003010020 its reverse (20010300031132), we get a palindrome (251140303041152).

The spelling of 231130003010020 in words is "two hundred thirty-one trillion, one hundred thirty billion, three million, ten thousand, twenty".

Divisors: 1 2 4 5 10 20 35099 70198 140396 175495 350990 701980 329254399 658508798 1317017596 1646271995 3292543990 6585087980 11556500150501 23113000301002 46226000602004 57782500752505 115565001505010 231130003010020