2120103000 has 192 divisors, whose sum is σ = 7413962400. Its totient is φ = 545798400.

The previous prime is 2120102987. The next prime is 2120103001. The reversal of 2120103000 is 3010212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120103001) 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 47 ways as a sum of consecutive naturals, for example, 256939 + ... + 265061.

Almost surely, 2^2120103000 is an apocalyptic number.

2120103000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2120103000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3706981200).

2120103000 is an abundant number, since it is smaller than the sum of its proper divisors (5293859400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2120103000 is a wasteful number, since it uses less digits than its factorization.

2120103000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8179 (or 8162 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 2120103000 is about 46044.5762278251. The cubic root of 2120103000 is about 1284.6524619449.

Adding to 2120103000 its reverse (3010212), we get a palindrome (2123113212).

The spelling of 2120103000 in words is "two billion, one hundred twenty million, one hundred three thousand".