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12312310212103 = 112953728237429
BaseRepresentation
bin1011001100101010111011…
…1000000110011000000111
31121121001020001211200220011
42303022232320012120013
53103211102403241403
642104110333451051
72410351345013146
oct263125670063007
947531201750804
1012312310212103
113a17692151710
12146a25b940a87
136b4079a18065
14307cc1a0d75d
151654111c9a6d
hexb32aee06607

12312310212103 has 16 divisors (see below), whose sum is σ = 14156935639200. Its totient is φ = 10603136951680.

The previous prime is 12312310212101. The next prime is 12312310212121. The reversal of 12312310212103 is 30121201321321.

It is a cyclic number.

It is not a de Polignac number, because 12312310212103 - 21 = 12312310212101 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 (12312310212101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 364101808 + ... + 364135621.

It is an arithmetic number, because the mean of its divisors is an integer number (884808477450).

Almost surely, 212312310212103 is an apocalyptic number.

12312310212103 is a deficient number, since it is larger than the sum of its proper divisors (1844625427097).

12312310212103 is a wasteful number, since it uses less digits than its factorization.

12312310212103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728237522.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 12312310212103 its reverse (30121201321321), we get a palindrome (42433511533424).

The spelling of 12312310212103 in words is "twelve trillion, three hundred twelve billion, three hundred ten million, two hundred twelve thousand, one hundred three".

Divisors: 1 11 29 53 319 583 1537 16907 728237429 8010611719 21118885441 38596583737 232307739851 424562421107 1119300928373 12312310212103