243310020052 has 36 divisors (see below), whose sum is σ = 488368607328. Its totient is φ = 105786960400.

The previous prime is 243310020049. The next prime is 243310020067. The reversal of 243310020052 is 250020013342.

It is a Harshad number since it is a multiple of its sum of digits (22).

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 11 ways as a sum of consecutive naturals, for example, 10917274 + ... + 10939537.

It is an arithmetic number, because the mean of its divisors is an integer number (13565794648).

Almost surely, 2^243310020052 is an apocalyptic number.

243310020052 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

243310020052 is an abundant number, since it is smaller than the sum of its proper divisors (245058587276).

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

243310020052 is a wasteful number, since it uses less digits than its factorization.

243310020052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21856860 (or 21856847 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 243310020052 its reverse (250020013342), we get a palindrome (493330033394).

The spelling of 243310020052 in words is "two hundred forty-three billion, three hundred ten million, twenty thousand, fifty-two".