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231013101223 = 1394193966503
BaseRepresentation
bin1101011100100101110…
…1000010111010100111
3211002021200220110111001
43113021131002322213
512241103323214343
6254043112254131
722455501650512
oct3271135027247
9732250813431
10231013101223
1189a76967173
12389319a1347
1318a2755a748
14b276cc7d79
156020ebb44d
hex35c9742ea7

231013101223 has 8 divisors (see below), whose sum is σ = 233230435200. Its totient is φ = 228803701368.

The previous prime is 231013101139. The next prime is 231013101233. The reversal of 231013101223 is 322101310132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-231013101223 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231013101223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231013101233) 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, 1925011 + ... + 2041492.

It is an arithmetic number, because the mean of its divisors is an integer number (29153804400).

Almost surely, 2231013101223 is an apocalyptic number.

231013101223 is a deficient number, since it is larger than the sum of its proper divisors (2217333977).

231013101223 is a wasteful number, since it uses less digits than its factorization.

231013101223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3967061.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 231013101223 its reverse (322101310132), we get a palindrome (553114411355).

The spelling of 231013101223 in words is "two hundred thirty-one billion, thirteen million, one hundred one thousand, two hundred twenty-three".

Divisors: 1 139 419 58241 3966503 551343917 1661964757 231013101223