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12300123423 = 3721929181839
BaseRepresentation
bin10110111010010010…
…01111110100011111
31011202012212000021210
423131021033310133
5200142312422143
65352310155503
7613544216100
oct133511176437
934665760253
1012300123423
11524210a865
122473352b93
1312103a6853
148498243a7
154beca6033
hex2dd24fd1f

12300123423 has 96 divisors (see below), whose sum is σ = 20913984000. Its totient is φ = 6385962240.

The previous prime is 12300123419. The next prime is 12300123427. The reversal of 12300123423 is 32432100321.

It is an interprime number because it is at equal distance from previous prime (12300123419) and next prime (12300123427).

It is not a de Polignac number, because 12300123423 - 22 = 12300123419 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 12300123423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12300123427) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 14660038 + ... + 14660876.

It is an arithmetic number, because the mean of its divisors is an integer number (217854000).

Almost surely, 212300123423 is an apocalyptic number.

12300123423 is a deficient number, since it is larger than the sum of its proper divisors (8613860577).

12300123423 is a wasteful number, since it uses less digits than its factorization.

12300123423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1085 (or 1078 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 12300123423 its reverse (32432100321), we get a palindrome (44732223744).

The spelling of 12300123423 in words is "twelve billion, three hundred million, one hundred twenty-three thousand, four hundred twenty-three".

Divisors: 1 3 7 19 21 29 49 57 87 133 147 181 203 399 543 551 609 839 931 1267 1421 1653 2517 2793 3439 3801 3857 4263 5249 5873 8869 10317 11571 15747 15941 17619 24073 24331 26607 26999 36743 41111 47823 72219 72993 80997 99731 110229 111587 123333 151859 168511 170317 257201 299193 334761 455577 462289 505533 510951 698117 771603 781109 1063013 1192219 1386867 2094351 2343327 2885321 3189039 3236023 3576657 4403911 4886819 7441091 8655963 9708069 13211733 14660457 20197247 22323273 22652161 30827377 60591741 67956483 83674309 92482131 141380729 215791639 251022927 424142187 585720163 647374917 1757160489 4100041141 12300123423