243131034104 has 128 divisors (see below), whose sum is σ = 566604595200. Its totient is φ = 95446512000.

The previous prime is 243131034101. The next prime is 243131034137. The reversal of 243131034104 is 401430131342.

It is a happy number.

It is a super-2 number, since 2×243131034104² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243131034101) 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, 48516959 + ... + 48521969.

It is an arithmetic number, because the mean of its divisors is an integer number (4426598400).

Almost surely, 2^243131034104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243131034104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (283302297600).

243131034104 is an abundant number, since it is smaller than the sum of its proper divisors (323473561096).

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

243131034104 is a wasteful number, since it uses less digits than its factorization.

243131034104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6545 (or 6541 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 243131034104 its reverse (401430131342), we get a palindrome (644561165446).

The spelling of 243131034104 in words is "two hundred forty-three billion, one hundred thirty-one million, thirty-four thousand, one hundred four".