2100086503 has 4 divisors (see below), whose sum is σ = 2148925768. Its totient is φ = 2051247240.

The previous prime is 2100086489. The next prime is 2100086531. The reversal of 2100086503 is 3056800012.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2100086503 - 2⁹ = 2100085991 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 (2100086803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24419568 + ... + 24419653.

It is an arithmetic number, because the mean of its divisors is an integer number (537231442).

Almost surely, 2^2100086503 is an apocalyptic number.

2100086503 is a deficient number, since it is larger than the sum of its proper divisors (48839265).

2100086503 is an equidigital number, since it uses as much as digits as its factorization.

2100086503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48839264.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 2100086503 is about 45826.7007649471. The cubic root of 2100086503 is about 1280.5967479111.

Adding to 2100086503 its reverse (3056800012), we get a palindrome (5156886515).

The spelling of 2100086503 in words is "two billion, one hundred million, eighty-six thousand, five hundred three".