243002442100 has 108 divisors (see below), whose sum is σ = 611082763200. Its totient is φ = 83166502400.

The previous prime is 243002442091. The next prime is 243002442103. The reversal of 243002442100 is 1244200342.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243002442103) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 64300 + ... + 700099.

Almost surely, 2^243002442100 is an apocalyptic number.

243002442100 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 243002442100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (305541381600).

243002442100 is an abundant number, since it is smaller than the sum of its proper divisors (368080321100).

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

243002442100 is a wasteful number, since it uses less digits than its factorization.

243002442100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 764458 (or 764434 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 243002442100 its reverse (1244200342), we get a palindrome (244246642442).

The spelling of 243002442100 in words is "two hundred forty-three billion, two million, four hundred forty-two thousand, one hundred".