2113543493 has 2 divisors, whose sum is σ = 2113543494. Its totient is φ = 2113543492.

The previous prime is 2113543469. The next prime is 2113543529. The reversal of 2113543493 is 3943453112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2002831009 + 110712484 = 44753^2 + 10522^2 .

It is a cyclic number.

It is not a de Polignac number, because 2113543493 - 2¹⁰ = 2113542469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2113533493) 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 as a sum of consecutive naturals, namely, 1056771746 + 1056771747.

It is an arithmetic number, because the mean of its divisors is an integer number (1056771747).

Almost surely, 2^2113543493 is an apocalyptic number.

It is an amenable number.

2113543493 is a deficient number, since it is larger than the sum of its proper divisors (1).

2113543493 is an equidigital number, since it uses as much as digits as its factorization.

2113543493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 35.

The square root of 2113543493 is about 45973.2910829756. The cubic root of 2113543493 is about 1283.3262068231.

The spelling of 2113543493 in words is "two billion, one hundred thirteen million, five hundred forty-three thousand, four hundred ninety-three".