2000123421001 has 4 divisors (see below), whose sum is σ = 2032912329604. Its totient is φ = 1967334512400.

The previous prime is 2000123420989. The next prime is 2000123421019. The reversal of 2000123421001 is 1001243210002.

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 1090343198025 + 909780222976 = 1044195^2 + 953824^2 .

It is a cyclic number.

It is not a de Polignac number, because 2000123421001 - 2⁵ = 2000123420969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2000123421301) 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, 16394454210 + ... + 16394454331.

It is an arithmetic number, because the mean of its divisors is an integer number (508228082401).

Almost surely, 2^{2000123421001} is an apocalyptic number.

It is an amenable number.

2000123421001 is a deficient number, since it is larger than the sum of its proper divisors (32788908603).

2000123421001 is an equidigital number, since it uses as much as digits as its factorization.

2000123421001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32788908602.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 2000123421001 its reverse (1001243210002), we get a palindrome (3001366631003).

The spelling of 2000123421001 in words is "two trillion, one hundred twenty-three million, four hundred twenty-one thousand, one".