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2000123031001 = 4148783488561
BaseRepresentation
bin11101000110110000100…
…111110110110111011001
321002012200000100110202211
4131012300213312313121
5230232222443443001
64130502133555121
7264334625152024
oct35066047666731
97065600313684
102000123031001
1170127a3428a7
122837791a5aa1
131167c2baca94
146cb40d581bb
1537063bd1351
hex1d1b09f6dd9

2000123031001 has 4 divisors (see below), whose sum is σ = 2048906519604. Its totient is φ = 1951339542400.

The previous prime is 2000123030989. The next prime is 2000123031061. The reversal of 2000123031001 is 1001303210002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 185239856025 + 1814883174976 = 430395^2 + 1347176^2 .

It is a cyclic number.

It is not a de Polignac number, because 2000123031001 - 213 = 2000123022809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2000123031061) 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, 24391744240 + ... + 24391744321.

It is an arithmetic number, because the mean of its divisors is an integer number (512226629901).

Almost surely, 22000123031001 is an apocalyptic number.

It is an amenable number.

2000123031001 is a deficient number, since it is larger than the sum of its proper divisors (48783488603).

2000123031001 is an equidigital number, since it uses as much as digits as its factorization.

2000123031001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48783488602.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 2000123031001 its reverse (1001303210002), we get a palindrome (3001426241003).

The spelling of 2000123031001 in words is "two trillion, one hundred twenty-three million, thirty-one thousand, one".

Divisors: 1 41 48783488561 2000123031001