243101605503500 has 96 divisors (see below), whose sum is σ = 538262734464000. Its totient is φ = 95898642048000.

The previous prime is 243101605503499. The next prime is 243101605503503. The reversal of 243101605503500 is 5305506101342.

It is not an unprimeable number, because it can be changed into a prime (243101605503503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 357031376 + ... + 357711624.

It is an arithmetic number, because the mean of its divisors is an integer number (5606903484000).

Almost surely, 2^{243101605503500} is an apocalyptic number.

243101605503500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243101605503500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269131367232000).

243101605503500 is an abundant number, since it is smaller than the sum of its proper divisors (295161128960500).

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

243101605503500 is a wasteful number, since it uses less digits than its factorization.

243101605503500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690132 (or 690120 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 35.

The spelling of 243101605503500 in words is "two hundred forty-three trillion, one hundred one billion, six hundred five million, five hundred three thousand, five hundred".