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12001000201097 = 239531987275549
BaseRepresentation
bin1010111010100011001101…
…0110101001101110001001
31120111021200100010120202112
42232220303112221232021
53033111022022413342
641305103335512105
72346020654411465
oct256506326515611
946437610116675
1012001000201097
113907660825786
121419a5a828635
136908c699a45b
142d6bcc77d4a5
1515c290b41682
hexaea335a9b89

12001000201097 has 16 divisors (see below), whose sum is σ = 12542277686400. Its totient is φ = 11461359541632.

The previous prime is 12001000201093. The next prime is 12001000201111. The reversal of 12001000201097 is 79010200010021.

It is a cyclic number.

It is not a de Polignac number, because 12001000201097 - 22 = 12001000201093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12001000201093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43415279 + ... + 43690827.

It is an arithmetic number, because the mean of its divisors is an integer number (783892355400).

Almost surely, 212001000201097 is an apocalyptic number.

It is an amenable number.

12001000201097 is a deficient number, since it is larger than the sum of its proper divisors (541277485303).

12001000201097 is a wasteful number, since it uses less digits than its factorization.

12001000201097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278512.

The product of its (nonzero) digits is 252, while the sum is 23.

The spelling of 12001000201097 in words is "twelve trillion, one billion, two hundred one thousand, ninety-seven".

Divisors: 1 23 953 1987 21919 45701 275549 1893611 6337627 43553053 262598197 547515863 6039758531 12592864849 521782617439 12001000201097