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2123103000100 = 2252208110202321
BaseRepresentation
bin11110111001010010110…
…011001101011000100100
321111222002200212012101011
4132321102303031120210
5234241103332000400
64303201241312004
7306250320512005
oct36712263153044
97458080765334
102123103000100
117494483268a5
122a357aa95604
13125291587174
1474a89d711ac
153a3605c08ba
hex1ee52ccd624

2123103000100 has 36 divisors (see below), whose sum is σ = 4609347865668. Its totient is φ = 848833024000.

The previous prime is 2123103000077. The next prime is 2123103000101. The reversal of 2123103000100 is 10003013212.

It can be written as a sum of positive squares in 6 ways, for example, as 212670390244 + 1910432609856 = 461162^2 + 1382184^2 .

It is not an unprimeable number, because it can be changed into a prime (2123103000101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4893061 + ... + 5309260.

It is an arithmetic number, because the mean of its divisors is an integer number (128037440713).

Almost surely, 22123103000100 is an apocalyptic number.

2123103000100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123103000100 is an abundant number, since it is smaller than the sum of its proper divisors (2486244865568).

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

2123103000100 is a wasteful number, since it uses less digits than its factorization.

2123103000100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10204416 (or 10204409 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 2123103000100 its reverse (10003013212), we get a palindrome (2133106013312).

The spelling of 2123103000100 in words is "two trillion, one hundred twenty-three billion, one hundred three million, one hundred", and thus it is an aban number.

Divisors: 1 2 4 5 10 20 25 50 100 2081 4162 8324 10405 20810 41620 52025 104050 208100 10202321 20404642 40809284 51011605 102023210 204046420 255058025 510116050 1020232100 21231030001 42462060002 84924120004 106155150005 212310300010 424620600020 530775750025 1061551500050 2123103000100