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12001110230020 = 2252477242250913
BaseRepresentation
bin1010111010100011100111…
…1010011000010000000100
31120111021222000011122001211
42232220321322120100010
53033111233204330040
641305122310101204
72346023461553512
oct256507172302004
946437860148054
1012001110230020
11390770794707a
121419a8b64a804
13690913712a22
142d6bdd2214b2
1515c29a6278ea
hexaea39e98404

12001110230020 has 24 divisors (see below), whose sum is σ = 25212506125464. Its totient is φ = 4798506064896.

The previous prime is 12001110230009. The next prime is 12001110230023. The reversal of 12001110230020 is 2003201110021.

It can be written as a sum of positive squares in 4 ways, for example, as 3528679596484 + 8472430633536 = 1878478^2 + 2910744^2 .

It is not an unprimeable number, because it can be changed into a prime (12001110230023) 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, 121075917 + ... + 121174996.

It is an arithmetic number, because the mean of its divisors is an integer number (1050521088561).

Almost surely, 212001110230020 is an apocalyptic number.

12001110230020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12001110230020 is an abundant number, since it is smaller than the sum of its proper divisors (13211395895444).

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

12001110230020 is a wasteful number, since it uses less digits than its factorization.

12001110230020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242253399 (or 242253397 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 12001110230020 its reverse (2003201110021), we get a palindrome (14004311340041).

The spelling of 12001110230020 in words is "twelve trillion, one billion, one hundred ten million, two hundred thirty thousand, twenty".

Divisors: 1 2 4 5 10 20 2477 4954 9908 12385 24770 49540 242250913 484501826 969003652 1211254565 2422509130 4845018260 600055511501 1200111023002 2400222046004 3000277557505 6000555115010 12001110230020