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23142220101 = 3471113285421
BaseRepresentation
bin10101100011011000…
…100100000101000101
32012201211011120220000
4111203120210011011
5334343402020401
614344214031513
71446325424310
oct254330440505
965654146800
1023142220101
1198a61a8540
12459a348599
13224a695b80
14119774d977
15906a54186
hex563624145

23142220101 has 80 divisors (see below), whose sum is σ = 46416467328. Its totient is φ = 11097129600.

The previous prime is 23142220051. The next prime is 23142220169. The reversal of 23142220101 is 10102224132.

It is a happy number.

23142220101 is a `hidden beast` number, since 231 + 422 + 2 + 0 + 10 + 1 = 666.

It is not a de Polignac number, because 23142220101 - 217 = 23142089029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23142222101) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 61630 + ... + 223791.

Almost surely, 223142220101 is an apocalyptic number.

23142220101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

23142220101 is an abundant number, since it is smaller than the sum of its proper divisors (23274247227).

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

23142220101 is a wasteful number, since it uses less digits than its factorization.

23142220101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285464 (or 285455 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 23142220101 its reverse (10102224132), we get a palindrome (33244444233).

The spelling of 23142220101 in words is "twenty-three billion, one hundred forty-two million, two hundred twenty thousand, one hundred one".

Divisors: 1 3 7 9 11 13 21 27 33 39 63 77 81 91 99 117 143 189 231 273 297 351 429 567 693 819 891 1001 1053 1287 2079 2457 3003 3861 6237 7371 9009 11583 27027 81081 285421 856263 1997947 2568789 3139631 3710473 5993841 7706367 9418893 11131419 17981523 21977417 23119101 25973311 28256679 33394257 40815203 53944569 65932251 77919933 84770037 100182771 122445609 161833707 197796753 233759799 254310111 285706421 300548313 367336827 593390259 701279397 857119263 1102010481 1780170777 2103838191 2571357789 3306031443 7714073367 23142220101