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231030344111 = 7431354721589
BaseRepresentation
bin1101011100101001111…
…0110100100110101111
3211002022220100111021112
43113022132310212233
512241122232002421
6254044530022235
722456101344360
oct3271236644657
9732286314245
10231030344111
1189a85673a96
123893771797b
1318a2acb6c38
14b2792d5b67
15602277545b
hex35ca7b49af

231030344111 has 16 divisors (see below), whose sum is σ = 264734161920. Its totient is φ = 197501703840.

The previous prime is 231030344071. The next prime is 231030344119. The reversal of 231030344111 is 111443030132.

It is not a de Polignac number, because 231030344111 - 218 = 231030081967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231030344119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10690505 + ... + 10712093.

It is an arithmetic number, because the mean of its divisors is an integer number (16545885120).

Almost surely, 2231030344111 is an apocalyptic number.

231030344111 is a deficient number, since it is larger than the sum of its proper divisors (33703817809).

231030344111 is a wasteful number, since it uses less digits than its factorization.

231030344111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25574.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 231030344111 its reverse (111443030132), we get a palindrome (342473374243).

The spelling of 231030344111 in words is "two hundred thirty-one billion, thirty million, three hundred forty-four thousand, one hundred eleven".

Divisors: 1 7 431 3017 3547 21589 24829 151123 1528757 9304859 10701299 65134013 76576183 536033281 33004334873 231030344111