2100536723503 has 4 divisors (see below), whose sum is σ = 2100543307600. Its totient is φ = 2100530139408.

The previous prime is 2100536723497. The next prime is 2100536723507. The reversal of 2100536723503 is 3053276350012.

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 2100536723503 - 2¹⁷ = 2100536592431 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 (2100536723507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2787750 + ... + 3460147.

It is an arithmetic number, because the mean of its divisors is an integer number (525135826900).

Almost surely, 2^{2100536723503} is an apocalyptic number.

2100536723503 is a deficient number, since it is larger than the sum of its proper divisors (6584097).

2100536723503 is an equidigital number, since it uses as much as digits as its factorization.

2100536723503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6584096.

The product of its (nonzero) digits is 113400, while the sum is 37.

The spelling of 2100536723503 in words is "two trillion, one hundred billion, five hundred thirty-six million, seven hundred twenty-three thousand, five hundred three".