2120435500 has 48 divisors (see below), whose sum is σ = 4903464384. Its totient is φ = 798278400.

The previous prime is 2120435431. The next prime is 2120435509. The reversal of 2120435500 is 55340212.

It is not an unprimeable number, because it can be changed into a prime (2120435509) 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 15 ways as a sum of consecutive naturals, for example, 116232 + ... + 133231.

It is an arithmetic number, because the mean of its divisors is an integer number (102155508).

Almost surely, 2^2120435500 is an apocalyptic number.

2120435500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120435500 is an abundant number, since it is smaller than the sum of its proper divisors (2783028884).

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

2120435500 is a wasteful number, since it uses less digits than its factorization.

2120435500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249499 (or 249487 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 2120435500 is about 46048.1867178285. The cubic root of 2120435500 is about 1284.7196166406.

Adding to 2120435500 its reverse (55340212), we get a palindrome (2175775712).

The spelling of 2120435500 in words is "two billion, one hundred twenty million, four hundred thirty-five thousand, five hundred".