2111453505 has 48 divisors (see below), whose sum is σ = 4185941760. Its totient is φ = 964485504.

The previous prime is 2111453483. The next prime is 2111453537. The reversal of 2111453505 is 5053541112.

2111453505 is a `hidden beast` number, since 2 + 11 + 145 + 3 + 505 = 666.

It is not a de Polignac number, because 2111453505 - 2¹³ = 2111445313 is a prime.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 725884 + ... + 728786.

It is an arithmetic number, because the mean of its divisors is an integer number (87207120).

Almost surely, 2^2111453505 is an apocalyptic number.

It is an amenable number.

2111453505 is a deficient number, since it is larger than the sum of its proper divisors (2074488255).

2111453505 is a wasteful number, since it uses less digits than its factorization.

2111453505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5230 (or 5227 counting only the distinct ones).

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

The square root of 2111453505 is about 45950.5550020889. Note that the first 3 decimals coincide. The cubic root of 2111453505 is about 1282.9030594802.

Adding to 2111453505 its reverse (5053541112), we get a palindrome (7164994617).

The spelling of 2111453505 in words is "two billion, one hundred eleven million, four hundred fifty-three thousand, five hundred five".