243122431042220 has 48 divisors (see below), whose sum is σ = 512440327102368. Its totient is φ = 96890369633280.

The previous prime is 243122431042177. The next prime is 243122431042261. The reversal of 243122431042220 is 22240134221342.

243122431042220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33368582 + ... + 39996338.

It is an arithmetic number, because the mean of its divisors is an integer number (10675840147966).

Almost surely, 2^{243122431042220} is an apocalyptic number.

243122431042220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243122431042220 is an abundant number, since it is smaller than the sum of its proper divisors (269317896060148).

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

243122431042220 is a wasteful number, since it uses less digits than its factorization.

243122431042220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6634530 (or 6634528 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 243122431042220 its reverse (22240134221342), we get a palindrome (265362565263562).

The spelling of 243122431042220 in words is "two hundred forty-three trillion, one hundred twenty-two billion, four hundred thirty-one million, forty-two thousand, two hundred twenty".