2140043023 has 4 divisors (see below), whose sum is σ = 2213837640. Its totient is φ = 2066248408.

The previous prime is 2140042991. The next prime is 2140043039. The reversal of 2140043023 is 3203400412.

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 2140043023 - 2⁵ = 2140042991 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 (2140043723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36897265 + ... + 36897322.

It is an arithmetic number, because the mean of its divisors is an integer number (553459410).

Almost surely, 2^2140043023 is an apocalyptic number.

2140043023 is a deficient number, since it is larger than the sum of its proper divisors (73794617).

2140043023 is an equidigital number, since it uses as much as digits as its factorization.

2140043023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73794616.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 2140043023 is about 46260.5990341673. The cubic root of 2140043023 is about 1288.6673783043.

Adding to 2140043023 its reverse (3203400412), we get a palindrome (5343443435).

The spelling of 2140043023 in words is "two billion, one hundred forty million, forty-three thousand, twenty-three".