231531533110234 has 16 divisors (see below), whose sum is σ = 397030356467136. Its totient is φ = 99198010692000.

The previous prime is 231531533110081. The next prime is 231531533110247. The reversal of 231531533110234 is 432011335135132.

It is a junction number, because it is equal to n+sod(n) for n = 231531533110193 and 231531533110202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2482386067 + ... + 2482479334.

It is an arithmetic number, because the mean of its divisors is an integer number (24814397279196).

Almost surely, 2^{231531533110234} is an apocalyptic number.

231531533110234 is a deficient number, since it is larger than the sum of its proper divisors (165498823356902).

231531533110234 is a wasteful number, since it uses less digits than its factorization.

231531533110234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4964868741.

The product of its (nonzero) digits is 97200, while the sum is 37.

Adding to 231531533110234 its reverse (432011335135132), we get a palindrome (663542868245366).

The spelling of 231531533110234 in words is "two hundred thirty-one trillion, five hundred thirty-one billion, five hundred thirty-three million, one hundred ten thousand, two hundred thirty-four".