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12010000001 = 97359344887
BaseRepresentation
bin10110010111101101…
…00000111010000001
31010222222221012202212
423023312200322001
5144044030000001
65303423551505
7603422213156
oct131366407201
933888835685
1012010000001
11510337183a
1223b215b595
13119525639c
1481d0a222d
154a45987bb
hex2cbda0e81

12010000001 has 8 divisors (see below), whose sum is σ = 12167648640. Its totient is φ = 11853042048.

The previous prime is 12009999949. The next prime is 12010000021. The reversal of 12010000001 is 10000001021.

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 a de Polignac number, because none of the positive numbers 2k-12010000001 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12010000001.

It is not an unprimeable number, because it can be changed into a prime (12010000021) 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, 137621 + ... + 207266.

It is an arithmetic number, because the mean of its divisors is an integer number (1520956080).

Almost surely, 212010000001 is an apocalyptic number.

It is an amenable number.

12010000001 is a deficient number, since it is larger than the sum of its proper divisors (157648639).

12010000001 is an equidigital number, since it uses as much as digits as its factorization.

12010000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345343.

The product of its (nonzero) digits is 2, while the sum is 5.

Adding to 12010000001 its reverse (10000001021), we get a palindrome (22010001022).

The spelling of 12010000001 in words is "twelve billion, ten million, one", and thus it is an aban number and an uban number.

Divisors: 1 97 359 34823 344887 33454039 123814433 12010000001