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131212442410012 = 2267947516999647
BaseRepresentation
bin11101110101011001000111…
…000001010001110000011100
3122012120210020201022022112201
4131311121013001101300130
5114144241040224110022
61143022055222341244
736431533433146405
oct3565310701216034
9565523221268481
10131212442410012
11388989800480a7
1212871a2558a824
13582a384874782
142458a04d889ac
15102820b794127
hex775647051c1c

131212442410012 has 24 divisors (see below), whose sum is σ = 233295057160704. Its totient is φ = 64558779795312.

The previous prime is 131212442409977. The next prime is 131212442410013. The reversal of 131212442410012 is 210014244212131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131212442410013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 258246028 + ... + 258753619.

It is an arithmetic number, because the mean of its divisors is an integer number (9720627381696).

Almost surely, 2131212442410012 is an apocalyptic number.

It is an amenable number.

131212442410012 is a deficient number, since it is larger than the sum of its proper divisors (102082614750692).

131212442410012 is a wasteful number, since it uses less digits than its factorization.

131212442410012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517000665 (or 517000663 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

Adding to 131212442410012 its reverse (210014244212131), we get a palindrome (341226686622143).

The spelling of 131212442410012 in words is "one hundred thirty-one trillion, two hundred twelve billion, four hundred forty-two million, four hundred ten thousand, twelve".

Divisors: 1 2 4 67 134 268 947 1894 3788 63449 126898 253796 516999647 1033999294 2067998588 34638976349 69277952698 138555905396 489598665709 979197331418 1958394662836 32803110602503 65606221205006 131212442410012