243041352020 has 24 divisors (see below), whose sum is σ = 515440178568. Its totient is φ = 96254000000.

The previous prime is 243041351981. The next prime is 243041352049. The reversal of 243041352020 is 20253140342.

It can be written as a sum of positive squares in 4 ways, for example, as 136181664784 + 106859687236 = 369028^2 + 326894^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60156731 + ... + 60160770.

It is an arithmetic number, because the mean of its divisors is an integer number (21476674107).

Almost surely, 2^243041352020 is an apocalyptic number.

243041352020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243041352020 is an abundant number, since it is smaller than the sum of its proper divisors (272398826548).

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

243041352020 is a wasteful number, since it uses less digits than its factorization.

243041352020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120317611 (or 120317609 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 243041352020 its reverse (20253140342), we get a palindrome (263294492362).

The spelling of 243041352020 in words is "two hundred forty-three billion, forty-one million, three hundred fifty-two thousand, twenty".