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2001302000121 = 3667100666707
BaseRepresentation
bin11101000111110110111…
…001010001000111111001
321002022201011210022100210
4131013312321101013321
5230242131303000441
64131215131221333
7264406062215544
oct35076671210771
97068634708323
102001302000121
11701824894846
12283a47ba7849
1311695021c848
146cc1377185b
15370d2465616
hex1d1f6e511f9

2001302000121 has 4 divisors (see below), whose sum is σ = 2668402666832. Its totient is φ = 1334201333412.

The previous prime is 2001302000111. The next prime is 2001302000261. The reversal of 2001302000121 is 1210002031002.

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 not a de Polignac number, because 2001302000121 - 27 = 2001301999993 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2001302000097 and 2001302000106.

It is not an unprimeable number, because it can be changed into a prime (2001302000111) 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, 333550333351 + ... + 333550333356.

It is an arithmetic number, because the mean of its divisors is an integer number (667100666708).

Almost surely, 22001302000121 is an apocalyptic number.

It is an amenable number.

2001302000121 is a deficient number, since it is larger than the sum of its proper divisors (667100666711).

2001302000121 is an equidigital number, since it uses as much as digits as its factorization.

2001302000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667100666710.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 2001302000121 its reverse (1210002031002), we get a palindrome (3211304031123).

The spelling of 2001302000121 in words is "two trillion, one billion, three hundred two million, one hundred twenty-one", and thus it is an aban number.

Divisors: 1 3 667100666707 2001302000121