4243135023 has 14 divisors (see below), whose sum is σ = 6361793384. Its totient is φ = 2828756196.

The previous prime is 4243134979. The next prime is 4243135067. The reversal of 4243135023 is 3205313424.

It is an interprime number because it is at equal distance from previous prime (4243134979) and next prime (4243135067).

It is not a de Polignac number, because 4243135023 - 2²⁵ = 4209580591 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4243135073) 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 in 13 ways as a sum of consecutive naturals, for example, 2909515 + ... + 2910972.

Almost surely, 2^4243135023 is an apocalyptic number.

4243135023 is a deficient number, since it is larger than the sum of its proper divisors (2118658361).

4243135023 is an frugal number, since it uses more digits than its factorization.

4243135023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5820505 (or 5820490 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 4243135023 is about 65139.3508027214. The cubic root of 4243135023 is about 1618.9332792324.

Adding to 4243135023 its reverse (3205313424), we get a palindrome (7448448447).

The spelling of 4243135023 in words is "four billion, two hundred forty-three million, one hundred thirty-five thousand, twenty-three".