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131212000200000 = 263551671309501
BaseRepresentation
bin11101110101011000101100…
…101010011000010101000000
3122012120202002220012201110010
4131311120230222120111000
5114144234134022400000
61143021543304304520
736431516453343366
oct3565305452302500
9565522086181403
10131212000200000
1138898773472185
1212871921472140
13582a314074745
1424589a2357636
1510281d2a43d50
hex77562ca98540

131212000200000 has 336 divisors, whose sum is σ = 436527289715328. Its totient is φ = 34780320000000.

The previous prime is 131212000199941. The next prime is 131212000200101. The reversal of 131212000200000 is 2000212131.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 99545250 + ... + 100854750.

It is an arithmetic number, because the mean of its divisors is an integer number (1299188362248).

Almost surely, 2131212000200000 is an apocalyptic number.

131212000200000 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 131212000200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218263644857664).

131212000200000 is an abundant number, since it is smaller than the sum of its proper divisors (305315289515328).

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

131212000200000 is an equidigital number, since it uses as much as digits as its factorization.

131212000200000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1309708 (or 1309678 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 131212000200000 its reverse (2000212131), we get a palindrome (131214000412131).

The spelling of 131212000200000 in words is "one hundred thirty-one trillion, two hundred twelve billion, two hundred thousand".