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12300123012 = 2231025010251
BaseRepresentation
bin10110111010010010…
…01111101110000100
31011202012211222201120
423131021033232010
5200142312414022
65352310153540
7613544214642
oct133511175604
934665758646
1012300123012
11524210a521
1224733528b0
1312103a65c8
14849824192
154beca5d5c
hex2dd24fb84

12300123012 has 12 divisors (see below), whose sum is σ = 28700287056. Its totient is φ = 4100041000.

The previous prime is 12300123007. The next prime is 12300123013. The reversal of 12300123012 is 21032100321.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×123001230122 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12300122982 and 12300123000.

It is not an unprimeable number, because it can be changed into a prime (12300123013) 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, 512505114 + ... + 512505137.

It is an arithmetic number, because the mean of its divisors is an integer number (2391690588).

Almost surely, 212300123012 is an apocalyptic number.

12300123012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12300123012 is an abundant number, since it is smaller than the sum of its proper divisors (16400164044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12300123012 is a wasteful number, since it uses less digits than its factorization.

12300123012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025010258 (or 1025010256 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 12300123012 its reverse (21032100321), we get a palindrome (33332223333).

The spelling of 12300123012 in words is "twelve billion, three hundred million, one hundred twenty-three thousand, twelve".

Divisors: 1 2 3 4 6 12 1025010251 2050020502 3075030753 4100041004 6150061506 12300123012