243131441425 has 12 divisors (see below), whose sum is σ = 305115315120. Its totient is φ = 192161715920.

The previous prime is 243131441401. The next prime is 243131441431. The reversal of 243131441425 is 524144131342.

It is not a de Polignac number, because 243131441425 - 2¹¹ = 243131439377 is a prime.

It is a super-2 number, since 2×243131441425² (a number of 24 digits) contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 58583815 + ... + 58587964.

It is an arithmetic number, because the mean of its divisors is an integer number (25426276260).

Almost surely, 2^243131441425 is an apocalyptic number.

243131441425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

243131441425 is a deficient number, since it is larger than the sum of its proper divisors (61983873695).

243131441425 is a wasteful number, since it uses less digits than its factorization.

243131441425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117171872 (or 117171867 counting only the distinct ones).

The product of its digits is 46080, while the sum is 34.

Adding to 243131441425 its reverse (524144131342), we get a palindrome (767275572767).

The spelling of 243131441425 in words is "two hundred forty-three billion, one hundred thirty-one million, four hundred forty-one thousand, four hundred twenty-five".