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212002323131020 = 225176009110376533
BaseRepresentation
bin110000001101000010100011…
…001010010110101010001100
31000210122020001102002110000111
4300031002203022112222030
5210241421224210143040
62030520304524205404
762440443125531002
oct6015024312265214
91023566042073014
10212002323131020
1161606753577944
121b93b579099864
13913a96c0621b6
143a4cd77d72a72
151979a00deedea
hexc0d0a3296a8c

212002323131020 has 48 divisors (see below), whose sum is σ = 471401290932768. Its totient is φ = 79811303408640.

The previous prime is 212002323131017. The next prime is 212002323131051. The reversal of 212002323131020 is 20131323200212.

It is a junction number, because it is equal to n+sod(n) for n = 212002323130982 and 212002323131000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15242674 + ... + 25619206.

It is an arithmetic number, because the mean of its divisors is an integer number (9820860227766).

Almost surely, 2212002323131020 is an apocalyptic number.

212002323131020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212002323131020 is an abundant number, since it is smaller than the sum of its proper divisors (259398967801748).

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

212002323131020 is a wasteful number, since it uses less digits than its factorization.

212002323131020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10436650 (or 10436648 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 212002323131020 its reverse (20131323200212), we get a palindrome (232133646331232).

The spelling of 212002323131020 in words is "two hundred twelve trillion, two billion, three hundred twenty-three million, one hundred thirty-one thousand, twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 60091 120182 240364 300455 600910 1021547 1201820 2043094 4086188 5107735 10215470 10376533 20430940 20753066 41506132 51882665 103765330 176401061 207530660 352802122 705604244 882005305 1764010610 3528021220 623536244503 1247072489006 2494144978012 3117681222515 6235362445030 10600116156551 12470724890060 21200232313102 42400464626204 53000580782755 106001161565510 212002323131020