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100211031103 = 293342017171
BaseRepresentation
bin101110101010100001…
…0101111110000111111
3100120122212201211111111
41131111002233300333
53120213010443403
6114011502102451
710145215465351
oct1352502576077
9316585654444
10100211031103
1139554572977
121750857aa27
1395b0459a11
144bc90b50d1
152917a2256d
hex17550afc3f

100211031103 has 4 divisors (see below), whose sum is σ = 100553048568. Its totient is φ = 99869013640.

The previous prime is 100211031091. The next prime is 100211031121. The reversal of 100211031103 is 301130112001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 301130112001 = 836336007427.

It is a cyclic number.

It is not a de Polignac number, because 100211031103 - 213 = 100211022911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100211031203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171008293 + ... + 171008878.

It is an arithmetic number, because the mean of its divisors is an integer number (25138262142).

Almost surely, 2100211031103 is an apocalyptic number.

100211031103 is a deficient number, since it is larger than the sum of its proper divisors (342017465).

100211031103 is an equidigital number, since it uses as much as digits as its factorization.

100211031103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342017464.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 100211031103 its reverse (301130112001), we get a palindrome (401341143104).

The spelling of 100211031103 in words is "one hundred billion, two hundred eleven million, thirty-one thousand, one hundred three".

Divisors: 1 293 342017171 100211031103