243422031 has 16 divisors (see below), whose sum is σ = 347522400. Its totient is φ = 151016448.

The previous prime is 243422021. The next prime is 243422083. The reversal of 243422031 is 130224342.

243422031 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 243422031 - 2⁶ = 243421967 is a prime.

It is a super-2 number, since 2×243422031² = 118508570352329922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 243421989 and 243422007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243422021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22276 + ... + 31353.

It is an arithmetic number, because the mean of its divisors is an integer number (21720150).

Almost surely, 2^243422031 is an apocalyptic number.

243422031 is a deficient number, since it is larger than the sum of its proper divisors (104100369).

243422031 is a wasteful number, since it uses less digits than its factorization.

243422031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53738.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 243422031 is about 15601.9880463997. The cubic root of 243422031 is about 624.3861971778.

Adding to 243422031 its reverse (130224342), we get a palindrome (373646373).

The spelling of 243422031 in words is "two hundred forty-three million, four hundred twenty-two thousand, thirty-one".