243031312425 has 48 divisors (see below), whose sum is σ = 438406225920. Its totient is φ = 117815592000.

The previous prime is 243031312417. The next prime is 243031312463. The reversal of 243031312425 is 524213130342.

It is not a de Polignac number, because 243031312425 - 2³ = 243031312417 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 243031312392 and 243031312401.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6673416 + ... + 6709734.

It is an arithmetic number, because the mean of its divisors is an integer number (9133463040).

Almost surely, 2^243031312425 is an apocalyptic number.

243031312425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

243031312425 is a deficient number, since it is larger than the sum of its proper divisors (195374913495).

243031312425 is a wasteful number, since it uses less digits than its factorization.

243031312425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44454 (or 44449 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 243031312425 its reverse (524213130342), we get a palindrome (767244442767).

The spelling of 243031312425 in words is "two hundred forty-three billion, thirty-one million, three hundred twelve thousand, four hundred twenty-five".