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213122303331230 = 25437110196850589
BaseRepresentation
bin110000011101010101100111…
…001011110000101110011110
31000221121021220202102112210102
4300131111213023300232132
5210413243434123044410
62033135011242541102
762614402232256056
oct6035254713605636
91027537822375712
10213122303331230
11619a8730163a97
121baa0644207792
1391bc4683a1b37
143a8b262c4a566
151998c00a0a2a5
hexc1d5672f0b9e

213122303331230 has 64 divisors (see below), whose sum is σ = 398461005043200. Its totient is φ = 82013047347840.

The previous prime is 213122303331227. The next prime is 213122303331239. The reversal of 213122303331230 is 32133303221312.

It is a super-2 number, since 2×2131223033312302 (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213122303331193 and 213122303331202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213122303331239) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27684776 + ... + 34535364.

It is an arithmetic number, because the mean of its divisors is an integer number (6225953203800).

Almost surely, 2213122303331230 is an apocalyptic number.

213122303331230 is a deficient number, since it is larger than the sum of its proper divisors (185338701711970).

213122303331230 is a wasteful number, since it uses less digits than its factorization.

213122303331230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6851729.

The product of its (nonzero) digits is 11664, while the sum is 29.

Adding to 213122303331230 its reverse (32133303221312), we get a palindrome (245255606552542).

The spelling of 213122303331230 in words is "two hundred thirteen trillion, one hundred twenty-two billion, three hundred three million, three hundred thirty-one thousand, two hundred thirty".

Divisors: 1 2 5 10 43 71 86 142 215 355 430 710 1019 2038 3053 5095 6106 10190 15265 30530 43817 72349 87634 144698 219085 361745 438170 723490 3111007 6222014 6850589 13701178 15555035 31110070 34252945 68505890 294575327 486391819 589150654 972783638 1472876635 2431959095 2945753270 4863918190 6980750191 13961500382 20914848217 34903750955 41829696434 69807501910 104574241085 209148482170 300172258213 495633263561 600344516426 991266527122 1500861291065 2478166317805 3001722582130 4956332635610 21312230333123 42624460666246 106561151665615 213122303331230