2111372543 has 16 divisors (see below), whose sum is σ = 2442781440. Its totient is φ = 1787455296.

The previous prime is 2111372537. The next prime is 2111372573. The reversal of 2111372543 is 3452731112.

It is a cyclic number.

It is not a de Polignac number, because 2111372543 - 2⁸ = 2111372287 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 (2111372533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1012580 + ... + 1014662.

It is an arithmetic number, because the mean of its divisors is an integer number (152673840).

Almost surely, 2^2111372543 is an apocalyptic number.

2111372543 is a deficient number, since it is larger than the sum of its proper divisors (331408897).

2111372543 is a wasteful number, since it uses less digits than its factorization.

2111372543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3806.

The product of its digits is 5040, while the sum is 29.

The square root of 2111372543 is about 45949.6740249591. The cubic root of 2111372543 is about 1282.8866619725.

The spelling of 2111372543 in words is "two billion, one hundred eleven million, three hundred seventy-two thousand, five hundred forty-three".