2100505052003 has 4 divisors (see below), whose sum is σ = 2106850989048. Its totient is φ = 2094159114960.

The previous prime is 2100505051991. The next prime is 2100505052033. The reversal of 2100505052003 is 3002505050012.

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 2100505052003 - 2²⁸ = 2100236616547 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2100505052003.

It is not an unprimeable number, because it can be changed into a prime (2100505052033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3172968026 + ... + 3172968687.

It is an arithmetic number, because the mean of its divisors is an integer number (526712747262).

Almost surely, 2^{2100505052003} is an apocalyptic number.

2100505052003 is a deficient number, since it is larger than the sum of its proper divisors (6345937045).

2100505052003 is an equidigital number, since it uses as much as digits as its factorization.

2100505052003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6345937044.

The product of its (nonzero) digits is 1500, while the sum is 23.

The spelling of 2100505052003 in words is "two trillion, one hundred billion, five hundred five million, fifty-two thousand, three".