243041031 has 12 divisors (see below), whose sum is σ = 359224008. Its totient is φ = 158259024.

The previous prime is 243041003. The next prime is 243041033. The reversal of 243041031 is 130140342.

243041031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 243041031 - 2⁵ = 243040999 is a prime.

It is a super-2 number, since 2×243041031² = 118137885499085922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 243040995 and 243041013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243041033) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 313620 + ... + 314393.

It is an arithmetic number, because the mean of its divisors is an integer number (29935334).

Almost surely, 2^243041031 is an apocalyptic number.

243041031 is a deficient number, since it is larger than the sum of its proper divisors (116182977).

243041031 is a wasteful number, since it uses less digits than its factorization.

243041031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628062 (or 628059 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 243041031 is about 15589.7732825080. The cubic root of 243041031 is about 624.0602675395.

Adding to 243041031 its reverse (130140342), we get a palindrome (373181373).

The spelling of 243041031 in words is "two hundred forty-three million, forty-one thousand, thirty-one".