231142200425 has 12 divisors (see below), whose sum is σ = 303476113116. Its totient is φ = 174036480000.

The previous prime is 231142200409. The next prime is 231142200469. The reversal of 231142200425 is 524002241132.

It can be written as a sum of positive squares in 6 ways, for example, as 1759634704 + 229382565721 = 41948^2 + 478939^2 .

It is not a de Polignac number, because 231142200425 - 2⁴ = 231142200409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231142200394 and 231142200403.

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, 271931576 + ... + 271932425.

It is an arithmetic number, because the mean of its divisors is an integer number (25289676093).

Almost surely, 2^231142200425 is an apocalyptic number.

231142200425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

231142200425 is a deficient number, since it is larger than the sum of its proper divisors (72333912691).

231142200425 is a wasteful number, since it uses less digits than its factorization.

231142200425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543864028 (or 543864023 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 231142200425 its reverse (524002241132), we get a palindrome (755144441557).

The spelling of 231142200425 in words is "two hundred thirty-one billion, one hundred forty-two million, two hundred thousand, four hundred twenty-five".