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12123120010 = 252972340787
BaseRepresentation
bin10110100101001100…
…00010000110001010
31011021212210022020211
423102212002012022
5144312004320020
65322544311334
7606264551131
oct132246020612
934255708224
1012123120010
115161204551
12242401254a
1311b28118c1
1483010a918
154ae49085a
hex2d298218a

12123120010 has 16 divisors (see below), whose sum is σ = 21822885216. Its totient is φ = 4848965968.

The previous prime is 12123119971. The next prime is 12123120073. The reversal of 12123120010 is 1002132121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276837 + ... + 317623.

It is an arithmetic number, because the mean of its divisors is an integer number (1363930326).

Almost surely, 212123120010 is an apocalyptic number.

12123120010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12123120010 is a deficient number, since it is larger than the sum of its proper divisors (9699765206).

12123120010 is a wasteful number, since it uses less digits than its factorization.

12123120010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70517.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 12123120010 its reverse (1002132121), we get a palindrome (13125252131).

The spelling of 12123120010 in words is "twelve billion, one hundred twenty-three million, one hundred twenty thousand, ten".

Divisors: 1 2 5 10 29723 40787 59446 81574 148615 203935 297230 407870 1212312001 2424624002 6061560005 12123120010