243425533242100 has 144 divisors (see below), whose sum is σ = 596197190937600. Its totient is φ = 85455736128000.

The previous prime is 243425533242083. The next prime is 243425533242139. The reversal of 243425533242100 is 1242335524342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 267154285 + ... + 268063915.

It is an arithmetic number, because the mean of its divisors is an integer number (4140258270400).

Almost surely, 2^{243425533242100} is an apocalyptic number.

243425533242100 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 243425533242100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (298098595468800).

243425533242100 is an abundant number, since it is smaller than the sum of its proper divisors (352771657695500).

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

243425533242100 is a wasteful number, since it uses less digits than its factorization.

243425533242100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918074 (or 918067 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 40.

Adding to 243425533242100 its reverse (1242335524342), we get a palindrome (244667868766442).

The spelling of 243425533242100 in words is "two hundred forty-three trillion, four hundred twenty-five billion, five hundred thirty-three million, two hundred forty-two thousand, one hundred".