2101255012503 has 48 divisors (see below), whose sum is σ = 3079308735360. Its totient is φ = 1380649439232.

The previous prime is 2101255012487. The next prime is 2101255012543. The reversal of 2101255012503 is 3052105521012.

2101255012503 is a `hidden beast` number, since 2 + 10 + 125 + 501 + 25 + 0 + 3 = 666.

It is not a de Polignac number, because 2101255012503 - 2⁴ = 2101255012487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101255012543) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 81770325 + ... + 81796017.

It is an arithmetic number, because the mean of its divisors is an integer number (64152265320).

Almost surely, 2^{2101255012503} is an apocalyptic number.

2101255012503 is a deficient number, since it is larger than the sum of its proper divisors (978053722857).

2101255012503 is a wasteful number, since it uses less digits than its factorization.

2101255012503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26328 (or 26325 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The spelling of 2101255012503 in words is "two trillion, one hundred one billion, two hundred fifty-five million, twelve thousand, five hundred three".