4243042031 has 4 divisors (see below), whose sum is σ = 4248434232. Its totient is φ = 4237649832.

The previous prime is 4243042021. The next prime is 4243042033. The reversal of 4243042031 is 1302403424.

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 4243042031 - 2¹⁸ = 4242779887 is a prime.

It is a super-2 number, since 2×4243042031² = 36006811353665209922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4243041988 and 4243042006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4243042033) 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, 2694920 + ... + 2696493.

It is an arithmetic number, because the mean of its divisors is an integer number (1062108558).

Almost surely, 2^4243042031 is an apocalyptic number.

4243042031 is a deficient number, since it is larger than the sum of its proper divisors (5392201).

4243042031 is an equidigital number, since it uses as much as digits as its factorization.

4243042031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5392200.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 4243042031 is about 65138.6370060044. The cubic root of 4243042031 is about 1618.9214523684.

Adding to 4243042031 its reverse (1302403424), we get a palindrome (5545445455).

The spelling of 4243042031 in words is "four billion, two hundred forty-three million, forty-two thousand, thirty-one".