2111454453 has 8 divisors (see below), whose sum is σ = 2819147968. Its totient is φ = 1405698624.

The previous prime is 2111454431. The next prime is 2111454467. The reversal of 2111454453 is 3544541112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2111454453 - 2⁸ = 2111454197 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 2111454453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111454053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 481876 + ... + 486237.

It is an arithmetic number, because the mean of its divisors is an integer number (352393496).

Almost surely, 2^2111454453 is an apocalyptic number.

It is an amenable number.

2111454453 is a deficient number, since it is larger than the sum of its proper divisors (707693515).

2111454453 is an equidigital number, since it uses as much as digits as its factorization.

2111454453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968843.

The product of its digits is 9600, while the sum is 30.

The square root of 2111454453 is about 45950.5653175236. The cubic root of 2111454453 is about 1282.9032514794.

Adding to 2111454453 its reverse (3544541112), we get a palindrome (5655995565).

The spelling of 2111454453 in words is "two billion, one hundred eleven million, four hundred fifty-four thousand, four hundred fifty-three".