243134015200 has 72 divisors (see below), whose sum is σ = 609592905432. Its totient is φ = 94625118720.

The previous prime is 243134015093. The next prime is 243134015207. The reversal of 243134015200 is 2510431342.

It is a super-2 number, since 2×243134015200² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243134015207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4077394 + ... + 4136593.

It is an arithmetic number, because the mean of its divisors is an integer number (8466568131).

Almost surely, 2^243134015200 is an apocalyptic number.

243134015200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243134015200 is an abundant number, since it is smaller than the sum of its proper divisors (366458890232).

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

243134015200 is a wasteful number, since it uses less digits than its factorization.

243134015200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8214044 (or 8214031 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 243134015200 its reverse (2510431342), we get a palindrome (245644446542).

The spelling of 243134015200 in words is "two hundred forty-three billion, one hundred thirty-four million, fifteen thousand, two hundred".