231550433320312 has 16 divisors (see below), whose sum is σ = 434660141355840. Its totient is φ = 115641062292096.

The previous prime is 231550433320253. The next prime is 231550433320373. The reversal of 231550433320312 is 213023334055132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16769288673 + ... + 16769302480.

It is an arithmetic number, because the mean of its divisors is an integer number (27166258834740).

Almost surely, 2^{231550433320312} is an apocalyptic number.

It is an amenable number.

231550433320312 is a deficient number, since it is larger than the sum of its proper divisors (203109708035528).

231550433320312 is a wasteful number, since it uses less digits than its factorization.

231550433320312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33538592022 (or 33538592018 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 37.

Adding to 231550433320312 its reverse (213023334055132), we get a palindrome (444573767375444).

The spelling of 231550433320312 in words is "two hundred thirty-one trillion, five hundred fifty billion, four hundred thirty-three million, three hundred twenty thousand, three hundred twelve".