243420230031 has 16 divisors (see below), whose sum is σ = 356442076800. Its totient is φ = 146537292320.

The previous prime is 243420229967. The next prime is 243420230063. The reversal of 243420230031 is 130032024342.

It is a cyclic number.

It is not a de Polignac number, because 243420230031 - 2⁶ = 243420229967 is a prime.

It is a super-2 number, since 2×243420230031² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 243420229983 and 243420230010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243420230731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24748005 + ... + 24757838.

It is an arithmetic number, because the mean of its divisors is an integer number (22277629800).

Almost surely, 2^243420230031 is an apocalyptic number.

243420230031 is a deficient number, since it is larger than the sum of its proper divisors (113021846769).

243420230031 is a wasteful number, since it uses less digits than its factorization.

243420230031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49506006.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 243420230031 its reverse (130032024342), we get a palindrome (373452254373).

The spelling of 243420230031 in words is "two hundred forty-three billion, four hundred twenty million, two hundred thirty thousand, thirty-one".