2101103500 has 96 divisors (see below), whose sum is σ = 4685833152. Its totient is φ = 822886400.

The previous prime is 2101103483. The next prime is 2101103503. The reversal of 2101103500 is 53011012.

It is not an unprimeable number, because it can be changed into a prime (2101103503) 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 31 ways as a sum of consecutive naturals, for example, 8175372 + ... + 8175628.

It is an arithmetic number, because the mean of its divisors is an integer number (48810762).

Almost surely, 2^2101103500 is an apocalyptic number.

2101103500 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 2101103500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2342916576).

2101103500 is an abundant number, since it is smaller than the sum of its proper divisors (2584729652).

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

2101103500 is a wasteful number, since it uses less digits than its factorization.

2101103500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556 (or 544 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 2101103500 is about 45837.7955403617. The cubic root of 2101103500 is about 1280.8034303305.

Adding to 2101103500 its reverse (53011012), we get a palindrome (2154114512).

The spelling of 2101103500 in words is "two billion, one hundred one million, one hundred three thousand, five hundred".