231552532442431 has 8 divisors (see below), whose sum is σ = 239115446555264. Its totient is φ = 223995460678560.

The previous prime is 231552532442359. The next prime is 231552532442479. The reversal of 231552532442431 is 134244235255132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 231552532442431 - 2⁷ = 231552532442303 is a prime.

It is a super-2 number, since 2×231552532442431² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231552532442831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1460506680 + ... + 1460665213.

It is an arithmetic number, because the mean of its divisors is an integer number (29889430819408).

Almost surely, 2^{231552532442431} is an apocalyptic number.

231552532442431 is a deficient number, since it is larger than the sum of its proper divisors (7562914112833).

231552532442431 is a wasteful number, since it uses less digits than its factorization.

231552532442431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2921174481.

The product of its digits is 3456000, while the sum is 46.

Adding to 231552532442431 its reverse (134244235255132), we get a palindrome (365796767697563).

The spelling of 231552532442431 in words is "two hundred thirty-one trillion, five hundred fifty-two billion, five hundred thirty-two million, four hundred forty-two thousand, four hundred thirty-one".