243233122770520 has 32 divisors (see below), whose sum is σ = 552587871157920. Its totient is φ = 96348654455040.

The previous prime is 243233122770499. The next prime is 243233122770529. The reversal of 243233122770520 is 25077221332342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243233122770529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29518578741 + ... + 29518586980.

It is an arithmetic number, because the mean of its divisors is an integer number (17268370973685).

Almost surely, 2^{243233122770520} is an apocalyptic number.

243233122770520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243233122770520 is an abundant number, since it is smaller than the sum of its proper divisors (309354748387400).

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

243233122770520 is a wasteful number, since it uses less digits than its factorization.

243233122770520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59037165835 (or 59037165831 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 43.

The spelling of 243233122770520 in words is "two hundred forty-three trillion, two hundred thirty-three billion, one hundred twenty-two million, seven hundred seventy thousand, five hundred twenty".