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12311131201120 = 255179429857933
BaseRepresentation
bin1011001100100110100010…
…0110100001111001100000
31121120221011220022201212201
42303021220212201321200
53103201144041413440
642103353335302544
72410310210413303
oct263115046417140
947527156281781
1012311131201120
113a17137681274
121469b90b1aa54
136b3c1c69221b
14307c0d1c4b3a
1516539293819a
hexb32689a1e60

12311131201120 has 48 divisors (see below), whose sum is σ = 29247533829360. Its totient is φ = 4896941561344.

The previous prime is 12311131201097. The next prime is 12311131201121. The reversal of 12311131201120 is 2110213111321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12311131201121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214900327 + ... + 214957606.

It is an arithmetic number, because the mean of its divisors is an integer number (609323621445).

Almost surely, 212311131201120 is an apocalyptic number.

12311131201120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12311131201120 is an abundant number, since it is smaller than the sum of its proper divisors (16936402628240).

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

12311131201120 is a wasteful number, since it uses less digits than its factorization.

12311131201120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429858127 (or 429858119 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 12311131201120 its reverse (2110213111321), we get a palindrome (14421344312441).

The spelling of 12311131201120 in words is "twelve trillion, three hundred eleven billion, one hundred thirty-one million, two hundred one thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 179 358 716 895 1432 1790 2864 3580 5728 7160 14320 28640 429857933 859715866 1719431732 2149289665 3438863464 4298579330 6877726928 8597158660 13755453856 17194317320 34388634640 68777269280 76944570007 153889140014 307778280028 384722850035 615556560056 769445700070 1231113120112 1538891400140 2462226240224 3077782800280 6155565600560 12311131201120