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12001111031201 = 292334394045787
BaseRepresentation
bin1010111010100011100111…
…1101011011110110100001
31120111021222001200100002012
42232220321331123312201
53033111233410444301
641305122335202305
72346023501431355
oct256507175336641
946437861610065
1012001111031201
113907708344006
121419a8b976395
136909139335b6
142d6bdd38d465
1515c29a734ebb
hexaea39f5bda1

12001111031201 has 16 divisors (see below), whose sum is σ = 12496629974400. Its totient is φ = 11511264524928.

The previous prime is 12001111031149. The next prime is 12001111031209. The reversal of 12001111031201 is 10213011110021.

It is not a de Polignac number, because 12001111031201 - 226 = 12001043922337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12001111031209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 943430 + ... + 4989216.

It is an arithmetic number, because the mean of its divisors is an integer number (781039373400).

Almost surely, 212001111031201 is an apocalyptic number.

It is an amenable number.

12001111031201 is a deficient number, since it is larger than the sum of its proper divisors (495518943199).

12001111031201 is a wasteful number, since it uses less digits than its factorization.

12001111031201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4046488.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 12001111031201 its reverse (10213011110021), we get a palindrome (22214122141222).

The spelling of 12001111031201 in words is "twelve trillion, one billion, one hundred eleven million, thirty-one thousand, two hundred one".

Divisors: 1 29 233 439 6757 12731 102287 2966323 4045787 117327823 942668371 1776100493 27337382759 51506914297 413831414869 12001111031201