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12301013123 = 71757287589
BaseRepresentation
bin10110111010011001…
…01001000010000011
31011202021112012201122
423131030221002003
5200143024404443
65352341222455
7613554613010
oct133514510203
934667465648
1012301013123
115242668253
122473701a2b
1312106287b9
148499b6707
154bedce968
hex2dd329083

12301013123 has 4 divisors (see below), whose sum is σ = 14058300720. Its totient is φ = 10543725528.

The previous prime is 12301013107. The next prime is 12301013141. The reversal of 12301013123 is 32131010321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32131010321 = 42837501987.

It is not a de Polignac number, because 12301013123 - 24 = 12301013107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12301013183) 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, 878643788 + ... + 878643801.

It is an arithmetic number, because the mean of its divisors is an integer number (3514575180).

Almost surely, 212301013123 is an apocalyptic number.

12301013123 is a deficient number, since it is larger than the sum of its proper divisors (1757287597).

12301013123 is an equidigital number, since it uses as much as digits as its factorization.

12301013123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1757287596.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 12301013123 its reverse (32131010321), we get a palindrome (44432023444).

The spelling of 12301013123 in words is "twelve billion, three hundred one million, thirteen thousand, one hundred twenty-three".

Divisors: 1 7 1757287589 12301013123