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100211210123 = 199758219341
BaseRepresentation
bin101110101010100001…
…1011011011110001011
3100120122220001221001212
41131111003123132023
53120213032210443
6114011510003335
710145220142313
oct1352503333613
9316586057055
10100211210123
1139554685422
121750864654b
1395b04c034b
144bc9120443
152917a5a618
hex17550db78b

100211210123 has 16 divisors (see below), whose sum is σ = 106602683040. Its totient is φ = 93932006400.

The previous prime is 100211210089. The next prime is 100211210131. The reversal of 100211210123 is 321012112001.

It is not a de Polignac number, because 100211210123 - 214 = 100211193739 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100211210098 and 100211210107.

It is not an unprimeable number, because it can be changed into a prime (100211210923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10723433 + ... + 10732773.

It is an arithmetic number, because the mean of its divisors is an integer number (6662667690).

Almost surely, 2100211210123 is an apocalyptic number.

100211210123 is a deficient number, since it is larger than the sum of its proper divisors (6391472917).

100211210123 is an equidigital number, since it uses as much as digits as its factorization.

100211210123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15278.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 100211210123 its reverse (321012112001), we get a palindrome (421223322124).

The spelling of 100211210123 in words is "one hundred billion, two hundred eleven million, two hundred ten thousand, one hundred twenty-three".

Divisors: 1 19 97 1843 5821 9341 110599 177479 564637 906077 10728103 17215463 54373961 1033105259 5274274217 100211210123