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123112002211 = 1117658352953
BaseRepresentation
bin111001010101000001…
…1000001001010100011
3102202202212221200222121
41302222003001022203
54004113133032321
6132320141245111
711615554516102
oct1625203011243
9382685850877
10123112002211
1148236574480
121ba39b63797
13b7bcb553b3
145d5c786039
1533082c0441
hex1caa0c12a3

123112002211 has 8 divisors (see below), whose sum is σ = 142204238064. Its totient is φ = 105336472320.

The previous prime is 123112002199. The next prime is 123112002259. The reversal of 123112002211 is 112200211321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123112002211 - 221 = 123109905059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123112002511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 329176290 + ... + 329176663.

It is an arithmetic number, because the mean of its divisors is an integer number (17775529758).

Almost surely, 2123112002211 is an apocalyptic number.

123112002211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

123112002211 is a deficient number, since it is larger than the sum of its proper divisors (19092235853).

123112002211 is a wasteful number, since it uses less digits than its factorization.

123112002211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658352981.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 123112002211 its reverse (112200211321), we get a palindrome (235312213532).

The spelling of 123112002211 in words is "one hundred twenty-three billion, one hundred twelve million, two thousand, two hundred eleven".

Divisors: 1 11 17 187 658352953 7241882483 11192000201 123112002211