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12310123012 = 2211279775523
BaseRepresentation
bin10110111011011110…
…11001001000000100
31011202220200001010221
423131233121020010
5200202342414022
65353304354124
7614025214315
oct133557311004
934686601127
1012310123012
11524781a690
122476775944
131212498175
1484aca860c
154c0acdcc7
hex2ddbd9204

12310123012 has 12 divisors (see below), whose sum is σ = 23501144016. Its totient is φ = 5595510440.

The previous prime is 12310123003. The next prime is 12310123013. The reversal of 12310123012 is 21032101321.

12310123012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12310123013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139887718 + ... + 139887805.

It is an arithmetic number, because the mean of its divisors is an integer number (1958428668).

Almost surely, 212310123012 is an apocalyptic number.

It is an amenable number.

12310123012 is a deficient number, since it is larger than the sum of its proper divisors (11191021004).

12310123012 is a wasteful number, since it uses less digits than its factorization.

12310123012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279775538 (or 279775536 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12310123012 its reverse (21032101321), we get a palindrome (33342224333).

The spelling of 12310123012 in words is "twelve billion, three hundred ten million, one hundred twenty-three thousand, twelve".

Divisors: 1 2 4 11 22 44 279775523 559551046 1119102092 3077530753 6155061506 12310123012