243141144420 has 48 divisors (see below), whose sum is σ = 720841984128. Its totient is φ = 61023659520.

The previous prime is 243141144391. The next prime is 243141144427. The reversal of 243141144420 is 24441141342.

It is a happy number.

It is a super-2 number, since 2×243141144420² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (243141144427) 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, 119185816 + ... + 119187855.

It is an arithmetic number, because the mean of its divisors is an integer number (15017541336).

Almost surely, 2^243141144420 is an apocalyptic number.

243141144420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243141144420 is an abundant number, since it is smaller than the sum of its proper divisors (477700839708).

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

243141144420 is a wasteful number, since it uses less digits than its factorization.

243141144420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238373700 (or 238373698 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 30.

Adding to 243141144420 its reverse (24441141342), we get a palindrome (267582285762).

The spelling of 243141144420 in words is "two hundred forty-three billion, one hundred forty-one million, one hundred forty-four thousand, four hundred twenty".