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1012002000001 = 1636208601227
BaseRepresentation
bin11101011101000000000…
…01010000110010000001
310120202011011022012022121
432232200001100302001
5113040040003000001
62052523551004241
7133054232032456
oct16564001206201
93522134265277
101012002000001
11360207823163
12144171509681
137457b9807a5
1436da442582d
151b4d027e6a1
hexeba0050c81

1012002000001 has 4 divisors (see below), whose sum is σ = 1018210601392. Its totient is φ = 1005793398612.

The previous prime is 1012001999951. The next prime is 1012002000013. The reversal of 1012002000001 is 1000002002101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1012002000001 - 219 = 1012001475713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012002000041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3104300451 + ... + 3104300776.

It is an arithmetic number, because the mean of its divisors is an integer number (254552650348).

Almost surely, 21012002000001 is an apocalyptic number.

It is an amenable number.

1012002000001 is a deficient number, since it is larger than the sum of its proper divisors (6208601391).

1012002000001 is an equidigital number, since it uses as much as digits as its factorization.

1012002000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6208601390.

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 1012002000001 its reverse (1000002002101), we get a palindrome (2012004002102).

The spelling of 1012002000001 in words is "one trillion, twelve billion, two million, one", and thus it is an aban number and an uban number.

Divisors: 1 163 6208601227 1012002000001