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11312030223 = 32132313193187
BaseRepresentation
bin10101000100011111…
…11110001000001111
31002012100120200020100
422202033332020033
5141131334431343
65110252022143
7550215445644
oct124217761017
932170520210
1011312030223
11488538980a
122238461953
1310b3778110
147944d5dcb
154631779d3
hex2a23fe20f

11312030223 has 48 divisors (see below), whose sum is σ = 18381242880. Its totient is φ = 6651450432.

The previous prime is 11312030201. The next prime is 11312030237. The reversal of 11312030223 is 32203021311.

It is not a de Polignac number, because 11312030223 - 26 = 11312030159 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11312030196 and 11312030205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11312030273) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3547836 + ... + 3551022.

It is an arithmetic number, because the mean of its divisors is an integer number (382942560).

Almost surely, 211312030223 is an apocalyptic number.

11312030223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11312030223 is a deficient number, since it is larger than the sum of its proper divisors (7069212657).

11312030223 is a wasteful number, since it uses less digits than its factorization.

11312030223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4548 (or 4545 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 11312030223 its reverse (32203021311), we get a palindrome (43515051534).

The spelling of 11312030223 in words is "eleven billion, three hundred twelve million, thirty thousand, two hundred twenty-three".

Divisors: 1 3 9 13 23 39 69 117 207 299 897 1319 2691 3187 3957 9561 11871 17147 28683 30337 41431 51441 73301 91011 124293 154323 219903 273033 372879 394381 659709 952913 1183143 2858739 3549429 4203653 8576217 12610959 37832877 54647489 96684019 163942467 290052057 491827401 870156171 1256892247 3770676741 11312030223