243211000410020 has 24 divisors (see below), whose sum is σ = 510750565395000. Its totient is φ = 97282978348032.

The previous prime is 243211000409989. The next prime is 243211000410083. The reversal of 243211000410020 is 20014000112342.

It can be written as a sum of positive squares in 4 ways, for example, as 20420927178304 + 222790073231716 = 4518952^2 + 14926154^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 243211000409974 and 243211000410001.

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, 87460295 + ... + 90198254.

It is an arithmetic number, because the mean of its divisors is an integer number (21281273558125).

Almost surely, 2^{243211000410020} is an apocalyptic number.

243211000410020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243211000410020 is an abundant number, since it is smaller than the sum of its proper divisors (267539564984980).

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

243211000410020 is a wasteful number, since it uses less digits than its factorization.

243211000410020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177727007 (or 177727005 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 243211000410020 its reverse (20014000112342), we get a palindrome (263225000522362).

The spelling of 243211000410020 in words is "two hundred forty-three trillion, two hundred eleven billion, four hundred ten thousand, twenty".