2000120551 has 16 divisors (see below), whose sum is σ = 2351065248. Its totient is φ = 1677513600.

The previous prime is 2000120537. The next prime is 2000120569. The reversal of 2000120551 is 1550210002.

It is a cyclic number.

It is not a de Polignac number, because 2000120551 - 2⁹ = 2000120039 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 (2000120531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 452685 + ... + 457081.

It is an arithmetic number, because the mean of its divisors is an integer number (146941578).

Almost surely, 2^2000120551 is an apocalyptic number.

2000120551 is a deficient number, since it is larger than the sum of its proper divisors (350944697).

2000120551 is a wasteful number, since it uses less digits than its factorization.

2000120551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7602.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 2000120551 is about 44722.7073308403. The cubic root of 2000120551 is about 1259.9463635100.

Adding to 2000120551 its reverse (1550210002), we get a palindrome (3550330553).

The spelling of 2000120551 in words is "two billion, one hundred twenty thousand, five hundred fifty-one".