2113451143 has 4 divisors (see below), whose sum is σ = 2113888320. Its totient is φ = 2113013968.

The previous prime is 2113451141. The next prime is 2113451167. The reversal of 2113451143 is 3411543112.

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 2113451143 - 2¹ = 2113451141 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 (2113451141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211255 + ... + 221032.

It is an arithmetic number, because the mean of its divisors is an integer number (528472080).

Almost surely, 2^2113451143 is an apocalyptic number.

2113451143 is a deficient number, since it is larger than the sum of its proper divisors (437177).

2113451143 is an equidigital number, since it uses as much as digits as its factorization.

2113451143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437176.

The product of its digits is 1440, while the sum is 25.

The square root of 2113451143 is about 45972.2866844798. The cubic root of 2113451143 is about 1283.3075151643.

Adding to 2113451143 its reverse (3411543112), we get a palindrome (5524994255).

The spelling of 2113451143 in words is "two billion, one hundred thirteen million, four hundred fifty-one thousand, one hundred forty-three".