2000121293 has 4 divisors (see below), whose sum is σ = 2000558748. Its totient is φ = 1999683840.

The previous prime is 2000121287. The next prime is 2000121313. The reversal of 2000121293 is 3921210002.

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 756360004 + 1243761289 = 27502^2 + 35267^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2000121293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000121223) 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, 211796 + ... + 221037.

It is an arithmetic number, because the mean of its divisors is an integer number (500139687).

Almost surely, 2^2000121293 is an apocalyptic number.

It is an amenable number.

2000121293 is a deficient number, since it is larger than the sum of its proper divisors (437455).

2000121293 is an equidigital number, since it uses as much as digits as its factorization.

2000121293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437454.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 2000121293 is about 44722.7156264018. The cubic root of 2000121293 is about 1259.9465193140.

Adding to 2000121293 its reverse (3921210002), we get a palindrome (5921331295).

The spelling of 2000121293 in words is "two billion, one hundred twenty-one thousand, two hundred ninety-three".