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103211112133 = 109946890937
BaseRepresentation
bin110000000011111011…
…1001001011011000101
3100212101221220201222201
41200013313021123011
53142334021042013
6115225312154501
710312444656313
oct1400767113305
9325357821881
10103211112133
113a853a89188
1218005238a31
13996ab6c0ac
144dd16dd0b3
152a410d03dd
hex1807dc96c5

103211112133 has 4 divisors (see below), whose sum is σ = 104158003180. Its totient is φ = 102264221088.

The previous prime is 103211112127. The next prime is 103211112163. The reversal of 103211112133 is 331211112301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 89357351329 + 13853760804 = 298927^2 + 117702^2 .

It is a cyclic number.

It is not a de Polignac number, because 103211112133 - 25 = 103211112101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 103211112133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103211112163) 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, 473445360 + ... + 473445577.

It is an arithmetic number, because the mean of its divisors is an integer number (26039500795).

Almost surely, 2103211112133 is an apocalyptic number.

It is an amenable number.

103211112133 is a deficient number, since it is larger than the sum of its proper divisors (946891047).

103211112133 is an equidigital number, since it uses as much as digits as its factorization.

103211112133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946891046.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 103211112133 its reverse (331211112301), we get a palindrome (434422224434).

The spelling of 103211112133 in words is "one hundred three billion, two hundred eleven million, one hundred twelve thousand, one hundred thirty-three".

Divisors: 1 109 946890937 103211112133