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12031331001120 = 253257310110331097
BaseRepresentation
bin1010111100010100001100…
…1101011110001100100000
31120121011222010212212110100
42233011003031132030200
53034110131214013440
641331041150102400
72351143412100054
oct257050315361440
946534863785410
1012031331001120
11391950576a762
1214239044aaa00
1369371b7554c2
142d8468ad7c64
1515ce68810230
hexaf14335e320

12031331001120 has 576 divisors, whose sum is σ = 42110453889504. Its totient is φ = 3127187865600.

The previous prime is 12031331001103. The next prime is 12031331001121. The reversal of 12031331001120 is 2110013313021.

12031331001120 is a `hidden beast` number, since 1 + 20 + 313 + 310 + 0 + 1 + 1 + 20 = 666.

It can be written as a sum of positive squares in 16 ways, for example, as 6628997699856 + 5402333301264 = 2574684^2 + 2324292^2 .

It is a super-2 number, since 2×120313310011202 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12031331001093 and 12031331001102.

It is not an unprimeable number, because it can be changed into a prime (12031331001121) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 10967484412 + ... + 10967485508.

Almost surely, 212031331001120 is an apocalyptic number.

12031331001120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12031331001120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21055226944752).

12031331001120 is an abundant number, since it is smaller than the sum of its proper divisors (30079122888384).

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

12031331001120 is a wasteful number, since it uses less digits than its factorization.

12031331001120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2325 (or 2314 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 12031331001120 its reverse (2110013313021), we get a palindrome (14141344314141).

The spelling of 12031331001120 in words is "twelve trillion, thirty-one billion, three hundred thirty-one million, one thousand, one hundred twenty".