2143053523 has 4 divisors (see below), whose sum is σ = 2307903808. Its totient is φ = 1978203240.

The previous prime is 2143053509. The next prime is 2143053547. The reversal of 2143053523 is 3253503412.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-2143053523 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2143053491 and 2143053500.

It is not an unprimeable number, because it can be changed into a prime (2143053553) 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, 82425123 + ... + 82425148.

It is an arithmetic number, because the mean of its divisors is an integer number (576975952).

Almost surely, 2^2143053523 is an apocalyptic number.

2143053523 is a deficient number, since it is larger than the sum of its proper divisors (164850285).

2143053523 is a wasteful number, since it uses less digits than its factorization.

2143053523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164850284.

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 2143053523 is about 46293.1260880058. The cubic root of 2143053523 is about 1289.2713716737.

Adding to 2143053523 its reverse (3253503412), we get a palindrome (5396556935).

The spelling of 2143053523 in words is "two billion, one hundred forty-three million, fifty-three thousand, five hundred twenty-three".