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12131244143104 = 2923693836217
BaseRepresentation
bin1011000010001000011001…
…1111110111001000000000
31120221201212021002100220111
42300202012133313020000
53042224242000034404
641445003331321104
72361311352560152
oct260420637671000
946851767070814
1012131244143104
113957917070079
12143b149150194
1369cc82273168
142dd2263c8ad2
151608650de104
hexb08867f7200

12131244143104 has 20 divisors (see below), whose sum is σ = 24238794451014. Its totient is φ = 6065622071296.

The previous prime is 12131244143069. The next prime is 12131244143119. The reversal of 12131244143104 is 40134144213121.

It can be written as a sum of positive squares in only one way, i.e., 9950542184704 + 2180701958400 = 3154448^2 + 1476720^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11846917597 + ... + 11846918620.

Almost surely, 212131244143104 is an apocalyptic number.

It is an amenable number.

12131244143104 is a deficient number, since it is larger than the sum of its proper divisors (12107550307910).

12131244143104 is an frugal number, since it uses more digits than its factorization.

12131244143104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23693836235 (or 23693836219 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

Adding to 12131244143104 its reverse (40134144213121), we get a palindrome (52265388356225).

The spelling of 12131244143104 in words is "twelve trillion, one hundred thirty-one billion, two hundred forty-four million, one hundred forty-three thousand, one hundred four".

Divisors: 1 2 4 8 16 32 64 128 256 512 23693836217 47387672434 94775344868 189550689736 379101379472 758202758944 1516405517888 3032811035776 6065622071552 12131244143104