243231131022 has 32 divisors (see below), whose sum is σ = 531250199424. Its totient is φ = 73628056800.

The previous prime is 243231130999. The next prime is 243231131057. The reversal of 243231131022 is 220131132342.

243231131022 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×243231131022² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 243231130983 and 243231131001.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1896088 + ... + 2020299.

It is an arithmetic number, because the mean of its divisors is an integer number (16601568732).

Almost surely, 2^243231131022 is an apocalyptic number.

243231131022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

243231131022 is an abundant number, since it is smaller than the sum of its proper divisors (288019068402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243231131022 is a wasteful number, since it uses less digits than its factorization.

243231131022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3917344.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 243231131022 its reverse (220131132342), we get a palindrome (463362263364).

The spelling of 243231131022 in words is "two hundred forty-three billion, two hundred thirty-one million, one hundred thirty-one thousand, twenty-two".