231510450243 has 8 divisors (see below), whose sum is σ = 326838282768. Its totient is φ = 145261458944.

The previous prime is 231510450229. The next prime is 231510450247. The reversal of 231510450243 is 342054015132.

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 231510450243 - 2¹² = 231510446147 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231510450243.

It is not an unprimeable number, because it can be changed into a prime (231510450247) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2269710246 + ... + 2269710347.

It is an arithmetic number, because the mean of its divisors is an integer number (40854785346).

Almost surely, 2^231510450243 is an apocalyptic number.

231510450243 is a deficient number, since it is larger than the sum of its proper divisors (95327832525).

231510450243 is a wasteful number, since it uses less digits than its factorization.

231510450243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4539420613.

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 231510450243 its reverse (342054015132), we get a palindrome (573564465375).

The spelling of 231510450243 in words is "two hundred thirty-one billion, five hundred ten million, four hundred fifty thousand, two hundred forty-three".