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12131111211324 = 2237149996342889
BaseRepresentation
bin1011000010000111111010…
…0100110001000100111100
31120221201111222221201210020
42300201332210301010330
53042224003432230244
641444542222212140
72361305146636020
oct260417644610474
946851458851706
1012131111211324
1139578590264a6
12143b110724050
1369cc6086c0c1
142dd2128a4380
151608585d1d19
hexb087e93113c

12131111211324 has 48 divisors (see below), whose sum is σ = 32371211040000. Its totient is φ = 3463719509376.

The previous prime is 12131111211301. The next prime is 12131111211463. The reversal of 12131111211324 is 42311211113121.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 12131111211294 and 12131111211303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48045529 + ... + 48297360.

It is an arithmetic number, because the mean of its divisors is an integer number (674400230000).

Almost surely, 212131111211324 is an apocalyptic number.

12131111211324 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12131111211324 is an abundant number, since it is smaller than the sum of its proper divisors (20240099828676).

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

12131111211324 is a wasteful number, since it uses less digits than its factorization.

12131111211324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96344402 (or 96344400 counting only the distinct ones).

The product of its digits is 288, while the sum is 24.

Adding to 12131111211324 its reverse (42311211113121), we get a palindrome (54442322324445).

The spelling of 12131111211324 in words is "twelve trillion, one hundred thirty-one billion, one hundred eleven million, two hundred eleven thousand, three hundred twenty-four".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 1499 2998 4497 5996 8994 10493 17988 20986 31479 41972 62958 125916 96342889 192685778 289028667 385371556 578057334 674400223 1156114668 1348800446 2023200669 2697600892 4046401338 8092802676 144417990611 288835981222 433253971833 577671962444 866507943666 1010925934277 1733015887332 2021851868554 3032777802831 4043703737108 6065555605662 12131111211324