243030235031 has 32 divisors (see below), whose sum is σ = 256282091520. Its totient is φ = 230177376000.

The previous prime is 243030234991. The next prime is 243030235039. The reversal of 243030235031 is 130532030342.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243030235031 is a prime.

It is a super-2 number, since 2×243030235031² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243030235039) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 239910881 + ... + 239911893.

It is an arithmetic number, because the mean of its divisors is an integer number (8008815360).

Almost surely, 2^243030235031 is an apocalyptic number.

243030235031 is a deficient number, since it is larger than the sum of its proper divisors (13251856489).

243030235031 is a wasteful number, since it uses less digits than its factorization.

243030235031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1887.

The product of its (nonzero) digits is 6480, while the sum is 26.

Adding to 243030235031 its reverse (130532030342), we get a palindrome (373562265373).

The spelling of 243030235031 in words is "two hundred forty-three billion, thirty million, two hundred thirty-five thousand, thirty-one".