2143345523 has 8 divisors (see below), whose sum is σ = 2338758336. Its totient is φ = 1948026600.

The previous prime is 2143345507. The next prime is 2143345537. The reversal of 2143345523 is 3255433412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2143345523 - 2⁴ = 2143345507 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2143345523.

It is not an unprimeable number, because it can be changed into a prime (2143345553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29468 + ... + 71798.

It is an arithmetic number, because the mean of its divisors is an integer number (292344792).

Almost surely, 2^2143345523 is an apocalyptic number.

2143345523 is a deficient number, since it is larger than the sum of its proper divisors (195412813).

2143345523 is a wasteful number, since it uses less digits than its factorization.

2143345523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46945.

The product of its digits is 43200, while the sum is 32.

The square root of 2143345523 is about 46296.2797965452. The cubic root of 2143345523 is about 1289.3299252188.

Adding to 2143345523 its reverse (3255433412), we get a palindrome (5398778935).

The spelling of 2143345523 in words is "two billion, one hundred forty-three million, three hundred forty-five thousand, five hundred twenty-three".