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12311130212101 = 7347763670381
BaseRepresentation
bin1011001100100110100010…
…0010110000011100000101
31121120221011211110111012101
42303021220202300130011
53103201143313241401
642103353302152101
72410310166124000
oct263115042603405
947527154414171
1012311130212101
113a171370661a6
121469b90722631
136b3c1c406cc6
14307c0d008537
151653927e0101
hexb32688b0705

12311130212101 has 16 divisors (see below), whose sum is σ = 14662471334400. Its totient is φ = 10327878219120.

The previous prime is 12311130212089. The next prime is 12311130212131. The reversal of 12311130212101 is 10121203111321.

It is not a de Polignac number, because 12311130212101 - 213 = 12311130203909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12311130212131) 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, 381819070 + ... + 381851311.

It is an arithmetic number, because the mean of its divisors is an integer number (916404458400).

Almost surely, 212311130212101 is an apocalyptic number.

It is an amenable number.

12311130212101 is a deficient number, since it is larger than the sum of its proper divisors (2351341122299).

12311130212101 is an frugal number, since it uses more digits than its factorization.

12311130212101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763670449 (or 763670435 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 12311130212101 its reverse (10121203111321), we get a palindrome (22432333323422).

The spelling of 12311130212101 in words is "twelve trillion, three hundred eleven billion, one hundred thirty million, two hundred twelve thousand, one hundred one".

Divisors: 1 7 47 49 329 343 2303 16121 763670381 5345692667 35892507907 37419848669 251247555349 261938940683 1758732887443 12311130212101