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12020131012 = 2225439118127
BaseRepresentation
bin10110011000111010…
…01010010011000100
31011000200222220220111
423030131022103010
5144104123143022
65304425042404
7603604266511
oct131435122304
934020886814
1012020131012
11510906137a
1223b5626404
131197392776
1482057c308
154a53ea477
hex2cc74a4c4

12020131012 has 12 divisors (see below), whose sum is σ = 21036234240. Its totient is φ = 6009778376.

The previous prime is 12020131001. The next prime is 12020131037. The reversal of 12020131012 is 21013102021.

It is a junction number, because it is equal to n+sod(n) for n = 12020130983 and 12020131001.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42693 + ... + 160819.

It is an arithmetic number, because the mean of its divisors is an integer number (1753019520).

Almost surely, 212020131012 is an apocalyptic number.

It is an amenable number.

12020131012 is a deficient number, since it is larger than the sum of its proper divisors (9016103228).

12020131012 is a wasteful number, since it uses less digits than its factorization.

12020131012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143570 (or 143568 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 12020131012 its reverse (21013102021), we get a palindrome (33033233033).

The spelling of 12020131012 in words is "twelve billion, twenty million, one hundred thirty-one thousand, twelve".

Divisors: 1 2 4 25439 50878 101756 118127 236254 472508 3005032753 6010065506 12020131012