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12111302101 = 671033174991
BaseRepresentation
bin10110100011110001…
…11100110111010101
31011021001112220010111
423101320330313111
5144300443131401
65321443123021
7606062240443
oct132170746725
934231486114
1012111302101
115155572588
122420073471
1311b0234762
1482c711b93
154ad408e51
hex2d1e3cdd5

12111302101 has 8 divisors (see below), whose sum is σ = 12304037504. Its totient is φ = 11918918880.

The previous prime is 12111302081. The next prime is 12111302123. The reversal of 12111302101 is 10120311121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12111302101 - 27 = 12111301973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111302131) 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, 18285 + ... + 156706.

It is an arithmetic number, because the mean of its divisors is an integer number (1538004688).

Almost surely, 212111302101 is an apocalyptic number.

It is an amenable number.

12111302101 is a deficient number, since it is larger than the sum of its proper divisors (192735403).

12111302101 is a wasteful number, since it uses less digits than its factorization.

12111302101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176091.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 12111302101 its reverse (10120311121), we get a palindrome (22231613222).

The spelling of 12111302101 in words is "twelve billion, one hundred eleven million, three hundred two thousand, one hundred one".

Divisors: 1 67 1033 69211 174991 11724397 180765703 12111302101