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123103030230101 = 671762918325369
BaseRepresentation
bin11011111111011000101000…
…011000110011110001010101
3121010212112102211121021212202
4123333120220120303301111
5112113410001214330401
61113452430143454245
734633620564016655
oct3377305030636125
9533775384537782
10123103030230101
113625177a303789
12119822378b7385
13538c7484a646c
14225830b61c365
15e372d414a06b
hex6ff628633c55

123103030230101 has 4 divisors (see below), whose sum is σ = 123103055273100. Its totient is φ = 123103005187104.

The previous prime is 123103030230077. The next prime is 123103030230109. The reversal of 123103030230101 is 101032030301321.

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 9763031422225 + 113339998807876 = 3124585^2 + 10646126^2 .

It is a cyclic number.

It is not a de Polignac number, because 123103030230101 - 214 = 123103030213717 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 (123103030230109) 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, 2445056 + ... + 15880313.

It is an arithmetic number, because the mean of its divisors is an integer number (30775763818275).

Almost surely, 2123103030230101 is an apocalyptic number.

It is an amenable number.

123103030230101 is a deficient number, since it is larger than the sum of its proper divisors (25042999).

123103030230101 is an equidigital number, since it uses as much as digits as its factorization.

123103030230101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25042998.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 123103030230101 its reverse (101032030301321), we get a palindrome (224135060531422).

The spelling of 123103030230101 in words is "one hundred twenty-three trillion, one hundred three billion, thirty million, two hundred thirty thousand, one hundred one".

Divisors: 1 6717629 18325369 123103030230101