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231212112003230 = 25167199769329177
BaseRepresentation
bin110100100100100101000011…
…110011011100000010011110
31010022122122212121220102221012
4310210211003303130002132
5220301134401133100410
62135425213343335222
766462344451030611
oct6444450363340236
91108578777812835
10231212112003230
11677425625a1816
1221b225585b1512
139c02293404737
144114a23d50178
151bae55704a605
hexd24943cdc09e

231212112003230 has 32 divisors (see below), whose sum is σ = 418883565675456. Its totient is φ = 91885007436544.

The previous prime is 231212112003193. The next prime is 231212112003247. The reversal of 231212112003230 is 32300211212132.

It is a junction number, because it is equal to n+sod(n) for n = 231212112003196 and 231212112003205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31329599 + ... + 37999578.

It is an arithmetic number, because the mean of its divisors is an integer number (13090111427358).

Almost surely, 2231212112003230 is an apocalyptic number.

231212112003230 is a deficient number, since it is larger than the sum of its proper divisors (187671453672226).

231212112003230 is a wasteful number, since it uses less digits than its factorization.

231212112003230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69331348.

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

Adding to 231212112003230 its reverse (32300211212132), we get a palindrome (263512323215362).

The spelling of 231212112003230 in words is "two hundred thirty-one trillion, two hundred twelve billion, one hundred twelve million, three thousand, two hundred thirty".

Divisors: 1 2 5 10 167 334 835 1670 1997 3994 9985 19970 333499 666998 1667495 3334990 69329177 138658354 346645885 693291770 11577972559 23155945118 57889862795 115779725590 138450366469 276900732938 692251832345 1384503664690 23121211200323 46242422400646 115606056001615 231212112003230