243022031 has 8 divisors (see below), whose sum is σ = 285246240. Its totient is φ = 202674528.

The previous prime is 243022019. The next prime is 243022049. The reversal of 243022031 is 130220342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 243022031 - 2¹⁰ = 243021007 is a prime.

It is a super-3 number, since 3×243022031³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243022081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 468896 + ... + 469413.

It is an arithmetic number, because the mean of its divisors is an integer number (35655780).

Almost surely, 2^243022031 is an apocalyptic number.

243022031 is a deficient number, since it is larger than the sum of its proper divisors (42224209).

243022031 is an equidigital number, since it uses as much as digits as its factorization.

243022031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938353.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 243022031 is about 15589.1638967585. The cubic root of 243022031 is about 624.0440049163.

Adding to 243022031 its reverse (130220342), we get a palindrome (373242373).

The spelling of 243022031 in words is "two hundred forty-three million, twenty-two thousand, thirty-one".