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231030101112 = 23312613763201
BaseRepresentation
bin1101011100101001110…
…1111001010001111000
3211002022212220010221120
43113022131321101320
512241122201213422
6254044520505240
722456066313046
oct3271235712170
9732285803846
10231030101112
1189a85518468
123893761b220
1318a2ac30455
14b279271396
15602272845c
hex35ca779478

231030101112 has 32 divisors (see below), whose sum is σ = 577621801680. Its totient is φ = 77003827200.

The previous prime is 231030101089. The next prime is 231030101153. The reversal of 231030101112 is 211101030132.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 231030101091 and 231030101100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78889 + ... + 684312.

Almost surely, 2231030101112 is an apocalyptic number.

It is an amenable number.

231030101112 is an abundant number, since it is smaller than the sum of its proper divisors (346591700568).

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

231030101112 is a wasteful number, since it uses less digits than its factorization.

231030101112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775823 (or 775819 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 231030101112 its reverse (211101030132), we get a palindrome (442131131244).

The spelling of 231030101112 in words is "two hundred thirty-one billion, thirty million, one hundred one thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 12 24 12613 25226 37839 50452 75678 100904 151356 302712 763201 1526402 2289603 3052804 4579206 6105608 9158412 18316824 9626254213 19252508426 28878762639 38505016852 57757525278 77010033704 115515050556 231030101112