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12310001212103 = 717195444494123
BaseRepresentation
bin1011001100100010010100…
…1111111101101011000111
31121120211021011001100100122
42303020211033331223013
53103141340302241403
642103045251532155
72410240206565550
oct263104517755307
947524234040318
1012310001212103
113a16707843851
1214699165ba05b
136b3a9c54157a
14307b430bb327
1516532862b838
hexb32253fdac7

12310001212103 has 16 divisors (see below), whose sum is σ = 15680143077120. Its totient is φ = 9408085842816.

The previous prime is 12310001212097. The next prime is 12310001212111. The reversal of 12310001212103 is 30121210001321.

It is a cyclic number.

It is not a de Polignac number, because 12310001212103 - 214 = 12310001195719 is a prime.

It is a super-2 number, since 2×123100012121032 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12310001212193) 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, 2722244801 + ... + 2722249322.

It is an arithmetic number, because the mean of its divisors is an integer number (980008942320).

Almost surely, 212310001212103 is an apocalyptic number.

12310001212103 is a deficient number, since it is larger than the sum of its proper divisors (3370141865017).

12310001212103 is a wasteful number, since it uses less digits than its factorization.

12310001212103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5444494166.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 12310001212103 its reverse (30121210001321), we get a palindrome (42431211213424).

The spelling of 12310001212103 in words is "twelve trillion, three hundred ten billion, one million, two hundred twelve thousand, one hundred three".

Divisors: 1 7 17 19 119 133 323 2261 5444494123 38111458861 92556400091 103445388337 647894800637 724117718359 1758571601729 12310001212103