2000123122001 has 4 divisors (see below), whose sum is σ = 2003077514292. Its totient is φ = 1997168729712.

The previous prime is 2000123121991. The next prime is 2000123122007. The reversal of 2000123122001 is 1002213210002.

It is a happy number.

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 1992995710225 + 7127411776 = 1411735^2 + 84424^2 .

It is a cyclic number.

It is not a de Polignac number, because 2000123122001 - 2¹⁰ = 2000123120977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2000123122007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1477195130 + ... + 1477196483.

It is an arithmetic number, because the mean of its divisors is an integer number (500769378573).

Almost surely, 2^{2000123122001} is an apocalyptic number.

It is an amenable number.

2000123122001 is a deficient number, since it is larger than the sum of its proper divisors (2954392291).

2000123122001 is an equidigital number, since it uses as much as digits as its factorization.

2000123122001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2954392290.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 2000123122001 its reverse (1002213210002), we get a palindrome (3002336332003).

The spelling of 2000123122001 in words is "two trillion, one hundred twenty-three million, one hundred twenty-two thousand, one".